Sunday, March 10, 2019

Presenting Chocolate Croissant (and Pains au Chocolat) ! (part 2)

Welcome back! For the second half of the tutorial, it's rolling out, cutting, shaping into the actual croissant and filled-rectangle shapes, baking and finishing. You'll need a ruler or tape measure to get the best-looking shapes, and a sharp knife with a blade at least 8 inches long.

The batch size we made before yields 24 full-sized pastries -- croissants approximately 6 inches wide, or pains about 5 inches long. Croissants are shaped from a triangle, rolled up from the wide end to the tip, then curved to form the familiar shape -- 4 inches at the base and 8 inches high.


Or you can make them half-size, about 4 inches wide, from a triangle 3 inches by 6 inches. This means 48 pastries, 24 from each half of the dough.

 The finished dough softens relatively fast when it's rolled thin, and sticking happens. I find it easiest to work with half of the batch at a time because of this, plus it is easier to maneuver a shorter length when rolling. For this reason, the measurements here are for half the batch.

To start, flour the counter well and take the finished and rested dough and roll from the open ends (crosswise to the last folds) to make the square into a rectangle about 18 inches long by 9 inches tall -- it will be about 1/2 inch thick. With a sharp knife, cut the dough in half to make 2 9 inch squares. Wrap and refrigerate one half, or put it in a gallon-size freezer bag and freeze it for another time. 

Your 9 inch square needs to be rolled out to about 3-4 mm thick -- a rectangle approximately 16 inches by 12 inches for full-sized croissants. Don't worry if it is a little too long or wide, but make sure that the 16-inch side is a folded edge (as versus an open end). It will be much easier to get the dough to a 16 inch length than a 12 inch width, but just keep at it, maintaining the even thickness by rolling from the center out. Try not to roll over the edges too much or they'll get too thin. Lift the dough from the counter often to make sure it's not sticking. As it gets thinner, it will start to become elastic and pull back. If it seems too soft, slide the whole thing onto a cutting board or pan and refrigerate the dough about 10-15 minutes. It might shrink -- wait to measure until it's cool.

Once you have the right sized rectangle, fold the 16-inch length in half so you have a double thickness rectangle 8 inches tall and 12 inches wide.


Now mark 4 inch segments across the bottom edge. Across the top, mark 2 inches, then 4 inches and another 4 inches -- the last bit will be 2 inches. Mark a diagonal line connecting the bottom right corner with the 2 inch mark at the top. From this mark, make another line to the first 4 inch mark at the bottom for your first triangle. Then go up to the second top point, down to the second bottom point, then up again twice more. You should have 3 triangles pointing up and two whole triangles pointing down, with a half-triangle on each side. 

Cut with a sharp knife along the marks, then unfold and cut the two middle triangles apart crosswise, as well as the four half-triangles.   Press the long (straight) sides of the two half-triangles together for the first croissant, stretching it out long for the maximum layers. Brush off the excess flour -- too much flour on the outside makes for crunchy (not crispy-tender) flakes.





Make two 1/2 inch cuts in the 4-inch base and spread it apart a bit. 


Now roll from the 4-inch base, stretching, to the tip. (Make sure the tip stays on the bottom... if it isn't weighted down, it will flip up and might burn, or your croissant might unroll.) Curve the ends into the familiar moon shape.


Repeat for the rest of the triangles, then the other half of the dough. As you shape them, put the croissants on a parchment- or nonstick mat-lined pan, spaced well apart. You can fit 6- 8 full-sized croissants on a 12x18 (half-sheet) pan -- don't crowd them or they will stick together once they rise and bake.



For half-sized croissants, the rectangle should be 12x18 inches, then folded so it is 6 inches tall. 


You can fit 12- 15 of this size on a pan.

Once all the croissants are formed, cover them with plastic wrap or another sheet pan and let them rise at room temperature until they double in size and feel very wobbly and light when you touch them -- it will take awhile, about two hours, but let the yeast do its thing.

Alternatively, freeze the shaped but not risen croissants until they are firm, then put them in a freezer bag to rise and bake as you please.

For pains au chocolat, roll the half-batch to a rectangle 12 x18 inches, and cut into 12 rectangles. Brush off the excess flour.

Put a few pieces of chocolate (we like milk chocolate) down the middle and roll up in thirds the long way, placing the end in the bottom center -- if the opening is on the side, it will tip over. Still delicious, but not as even-looking.







For half-sized pains au chocolat, start with the rectangle the same size, 12x18, and cut it into 2 x 4.5 inch rectangles.


As with the croissant, set the formed pains au chocolat on a lined pan, and cover to rise. (Or freeze, as above.)
 They will tend not to take as long as the croissant, so check them in 1 hr 20 minutes. (I didn't slash mine, but you definitely can, to get those beautiful markings you see on Instagram that show off the layers. Next time, I'll do some with slashes and update this post.)

When the shaped croissant and pains are almost fully risen, put a metal pan (like a pie or cake pan) on the floor of the oven (you will use this to create steam later, which will help the pastries rise), set the racks evenly spaced and preheat the oven to 370 degrees. 

When they are fully risen -- wobbly and light when nudged with a fingertip -- quickly toss about a cup of hot water in the pan on the bottom of the oven and place the pans with the croissants or pains on the racks. Close the door quickly to trap the steam, and bake about 12-15 minutes without peeking. Smells amazing!

At the 12-minute point, they should have risen nicely and started to brown -- it's harder to tell with the chocolate dough, but they should feel set and just firm. Rotate the pans top and bottom and front to back, and bake another 5-8 minutes. 

For half-sized pastries, check and rotate after 8-10 minutes -- they will go quickly!

I don't like to egg-wash the chocolate dough because it doesn't really make a nice color. Instead, after baking I brush them with a syrup that makes them shiny as the water evaporates. 
100 g sugar
50 g hot water
30 g corn syrup or honey (to prevent crystallization)

When they are fully baked, let the croissant and pains cool a bit before brushing the syrup on, gently so the delicate flakes don't come off. Let them cool completely on a rack so condensation doesn't make the bottoms soggy.



And there you have it! Beautiful, delectable and oh-so-satisfyingly handmade croissants et pains au chocolat, chocolate through and through. 





Thank you for sticking it out through this tutorial!! I'm really proud of these, and hope you will be too when you make your own. Let me know what you think!!!








Tuesday, February 26, 2019

Presenting the Chocolate Croissant!! (part 1)



Yes, these are chocolate croissants. Not just pains au chocolat, but croissants, shaped like crescents, made out of yeasted and laminated chocolate dough. As far as Google can find, this is the first English* tutorial on how to make them to ever exist on the interwebs. Like, ever. I'm not sure why.

*EDIT as of 3/8: Pinterest has informed me that tutorials for similar chocolate croissants exist in Chinese and Italian -- I don't know how close they are to these (I can't read either language well enough) but it doesn't look like they are the same from the pictures... just putting out this disclaimer. Shoutout to the international lamination nation. :D

First off, I am indebted to my cousin Angela's Instagram post about chocolate croissants in a random HK mall stall, pleading for anyone to make them in the Philippines, or for a class on croissants. I have taught many a croissant class at ICE and Monroe College (hi, students!!), but she's not in the same city.

Plus, chocolate ones! Here I have to point you to the stunning pix on Francois Brunet's Instagram -- he has the most riveting chocolate pains au chocolat photos (as well as myriad other absolutely stunning bread and pastry work. Seriously it's awe-inspiring.)
But no recipes, let alone tutorials. Sure, there are many that are filled with chocolate, some that have a layer of chocolate dough so they are striped, or even leopard patterned. But none like these.
So on to the figuring! 

My formula is based on one in Advanced Bread and Pastry: A Professional Approach by Michel Suas, but adjusted to yield a quantity manageable at home having a stand mixer and a rolling pin but no sheeter, but the dough is easily mixed by hand as well. I use bread flour because of the added cocoa.
I jump at any chance to use my sourdough starter, so it features here too. It tastes wonderful -- the cocoa's bitterness is tempered by the almost leafy tang, and a bit of salt and malt or sugar bump up the lush flavor of both the chocolate and the yeasted dough. 
It's a two-part process but can easily by divided into more 30-minute sets -- no need to block off your whole weekend to make croissants! This part is making the dough and putting in the layers, and the second part will be shaping and finishing.

If you don't have an active sourdough or levain (but really if you like to make bread you should!), or if this is the only yeasted recipe you will ever make (no judgement!) you can make an overnight poolish

220 g. all-purpose flour 
220 g room temp water
2.2 g (1/2 tsp) active dry yeast or instant yeast
Whisk together, cover, let rise 10-16 hours.

Chocolate Croissant and Pains au Chocolat 
yields 24 full-sized croissant or 12 each croissant and pains au chocolat, or 48 half-size croissant

Detrempe (dough part):
500 g. bread flour
60 g. unsweetened cocoa powder (I used Valrhona)
130 g. water 
140 g. milk 
7.5 g. (1 1/2 tsp) active dry or instant yeast 
440 g. sourdough starter, or the poolish from above 
93 g. sugar
15 g. (1 tbsp) salt
2 g. (1/2 tsp) powdered malt, 5 g.malt syrup, or 7 g. more sugar
29 g. butter, softened

With a mixer: Combine flour and cocoa in a mixer bowl. Dissolve the yeast in the water, then add that and the milk and starter or poolish to the cocoa and flour. Mix with the dough hook until no dry bits remain, then 1 minute on low speed. Add the sugar, salt, malt and butter, and mix on medium until the dough comes together and cleans off the bowl. 



to mix by hand: Dissolve the yeast in the water. Mix together flour, cocoa, salt, sugar, and malt in a large bowl. Rub in the butter with your fingers until it disappears. Make a well and add the yeast/water, milk, and starter or poolish. Mix with a wooden spoon, then your hands, until the dough comes together and no dry bits remain. Turn the dough out onto the counter and knead a few strokes until it is smooth and uniform.

Cover the dough in the bowl and let it rise at room temperature for 1 hour.

❧❧

Lightly butter or oil a large piece of plastic wrap. Press the dough (it will be a bit puffy but might not have doubled) into a rectangle about 1/2 inch thick on the wrap, fold it over to enclose, and let it rest in the fridge for at least an hour, or up to 6 hours.

❧❧ 


Buerrage (roll-in butter part):
340 g. unsalted butter, cold
20 g. unsweetened cocoa powder

The goal is to get the butter to the same malleable texture as the detrempe but still very cold -- softened manually, not by temperature. Place the butter (in two or three pieces) on a large piece of plastic wrap, or a nonstick mat. (A piece of heavy vinyl, like from a shower curtain or book cover, works well too.) Scatter the cocoa powder on. Roll the butter so it is coated all over, then fold the plastic on top and start to work the butter and cocoa together by hitting it with a rolling pin.

Use the plastic or mat to fold and shape the butter as you strike. So whack and fold until the cocoa is incorporated, trying to keep the butter pressed together and even. It is a messy process, but pretty satisfying and therapeutic! When all the cocoa is worked in, shape the buerrage into a 10 inch square on the mat, about 1/4 inch thick.

Enclosing (forming the Paton)
Clear off the counter and dust with flour. Unwrap the cold dough and flip it onto the floured surface, trying not to have it fold over on itself. Press the dough out with your hands into a rectangle, 12 inches by 18 inches. (my dough scraper is 6 inches wide - super handy!)


 Center the roll-in butter square at the bottom 2/3 of the rectangle, with 1 inch on 3 sides and the rest of the dough at the top.


fold the empty 1/3 of dough onto the buerrage and dust off the excess flour. 

Now fold the bottom 1/3 over the middle, making a 3-fold, like a letter to fit an envelope.  Press the edges together to seal in the buerrage. You now have 2 layers of butter roll-in between 3 layers of dough. 

Press in short up-down strokes with the pin to get the rectangle even and align the layers, then keep pressing until the folded dough is about 1/2 inch thick. I like to do so on the diagonals, so the corners stay true. 
When it is thin enough so your knuckles hit the counter, start to roll to a rectangle to make your first laminating fold. My counter doesn't allow me to get around its side, so I turn the dough parallel to the edge so i can leverage to roll the length. 
Don't be afraid to flour the surface well -- you don't want the dough to stick and rip to make the butter leak out. Use your scraper to make sure the dough is loose from the counter, moving it around to maintain the even thickness. Aim for a rectangle 3 times as long as it is wide -- in this case, about 9 inches by 27 inches.


Now fold one side over the middle, aligning the edges. 

Brush off the excess flour and fold the other side over, making 3 layers. 

That was your first fold! You will end up with a 9 inch square. Wrap the croissant dough in plastic wrap and let it rest in the fridge for at least 45 minutes.  This gives the butter roll-in a chance to chill and firm up, and the gluten developed to relax -- both make it easier for you to do the 2nd and 3rd folds. (Yeah, you can rest and chill too.)


❦❦


Flour the counter again and place the rested, cold dough square so the folded edges are parallel to the edge of the counter. You want to roll so the open edges become the short sides of the rectangle and the folds become the long edges, so press across with the rolling pin to 1/2 inch thickness, as before. 


Roll the dough back out to a 9x27 inch rectangle, then make the 2nd fold just like the first, brushing off any excess flour and aligning the edges. You'll notice that it gets more cohesive and manageable as the butter layers get thinner, but pay attention so you don't have sticking, and it stays an even thickness -- the tendency is for the edges to get thin and the middle to be thicker, so to prevent that, make sure to roll from the middle out, with consistent pressure.

Wrap and rest as before, then repeat one more time, for a total of 3 sets of folds. Yay, the lamination is complete! Wrap the finished dough and let it rest in the fridge at least 2 hours, or up to three days. 

This got long enough, so rolling, shaping, baking and finishing will be the next post! Thanks for your patience, see you back here soon for that.













Monday, February 4, 2019

A Banananana loaf/muffin to make basically anytime.

I hoard bananas in my freezer. Gone now are the days when I needed them as an egg substitute, but I still feel wasteful if they get to that perfect mottled ripeness and don't get eaten, so in the freezer they go. While in the summer they make a great smoothie, in the winter you need something less chilly. Before I know it I have a stash enough to make several loaves of banana bread, which is delicious and always consumed quickly. Yes, I always end up making more than one loaf because I feel wasteful (again) of the oven space. Or less often I make muffins. Either form is quick and very easily adapted-- add nuts, chocolate, coconut, even sub gluten-free flour. Everything else is probably already in your pantry -- which is part of why this recipe comes together so easily; there are no eggs or dairy to worry about picking up from the store.

Easiest Banana Loaves or Muffins
Makes 2 8 1/2 x 4 loaves or about 20 regular-sized muffins -- coat pans lightly with cooking spray or line with paper.

Dry ingredients: Whisk until combined:
I usually do 1 1/2 cups (180 g) whole wheat flour and 2 cups (240 g) regular all-purpose flour because I like the taste, and the fiber/nutrition boost. 
1 1/3 cups (235 g) sugar -- again, you can do part brown sugar or all muscovado or coconut sugar.
2 tsp. baking powder
1 1/2 tsp. baking soda
1 tsp. salt



Wet ingredients: 2/3 cup (160 ml) oil -- coconut, corn, etc.
2 1/2 cups bananas (if previously frozen, they pretty much peel themselves thawed)
 Vanilla extract, lemon/lime/orange zest or extract, nuts, chips, etc. can go in too.

If you use a mixer, put the wet ingredients in first and mix on low until the bananas are smooth. Add the dry ingredients and mix just until combined. If the bananas were very ripe, you should have a batter that holds a trail when a spatula is run through:


If it is too stiff, adjust the thickness with coconut or regular milk, or water.
 Divide evenly between the pans. It will come about halfway up or a little more.


Bake loaves at 350 about 40 minutes, turning halfway through time. They are done when a skewer or toothpick comes out clean from the middle, or with a few moist crumbs. Muffins will take about 12-15 minutes, depending on size.

Store covered at room temperature -- the loaves go quickly if you leave a table knife handy. Muffins freeze well in a zip-close bag, to be thawed individually for a portable breakfast. (spread with Nutella, they are gone even faster. But not at our [still nut-allergic] house.)

Sunday, October 14, 2018

Sourdough brioche is a thing that happened.

Sourdough brioche. Why? Because I can.
It's fall and not stiflingly hot anymore, and we could use some good bread in the house.

Cinnamon sourdough brioche loaf -- look at that spongy light crumb!

My sourdough mother has been underemployed all summer because of... well, life. But I took it out and fed it Friday night in anticipation of baking Saturday, and the poor creature rallied. (I have a liquid sourdough, fed equal parts flour and water by weight. If you have a biga or firm starter, you'll pull back on the flour in the dough to compensate.)

Brioche, of course, is an enriched yeast dough bursting with egg and butter. It's a natural for pre-ferments, but it's one dough that many pastry people make with commercial yeast and the straight method... because all that butter and egg make brioche the dough to turn to for breakfast rolls, burger buns, and various other "plain but not plain old" uses, often on the fly. It combines nicely without too much attention in a standing mixer, then you just let the mixer do its thing to develop the structure before rising and shaping.

It's nice to be able to take the time to make a brioche of value as its own self and not just a hapless vehicle. I do like the bright color that a lot of yolks gives the dough -- this uses a lot of egg and comparatively little butter. The yolks also give these great keeping qualities -- I've had a loaf on the counter for more than a week and it's still tender.

As you can see, this will make three household-sized loaves -- I like to make multiples... more on this on the next post. If you don't have freezer space or receptive co-workers/neighbors/etc, you can divide the quantities for one loaf easily.

35 g milk or water
300 g sourdough starter, fed 6-8 hours before
256 g Egg yolks
7 g Granulated yeast

516 g bread flour
56 g sugar
11 g salt

113 g unsalted butter, cool but not cold

The way I usually mix brioche is to put the liquids in the bowl with the yeast first and mix that together with the paddle to distribute the granules evenly. Add the bread flour, salt and sugar and mix for 5 or 6 minutes on low speed with the hook until the dough comes together... scrape down into the divot to get any moisture encapsulated there. It will look stiff and undermixed -- that's fine.
Add the butter in chunks and mix that in, then change to medium speed and let the dough hook do its job to get the (formerly scraggly) dough into a smooth, elastic and supple dough that hangs together off the hook and cleans the sides of the bowl. If it doesn't, add a handful more flour, but it will take a good 7-10 minutes to get to this anyway -- yay for stand mixers!

When I make bread at home I just cover the bowl with plastic and let it rise in the mixer bowl, but if you have another use for your mixer bowl, turn the dough out into a buttered container that will accommodate it while it doubles its size.

Have some loaf pans ready -- for plain loaves, just buttered or sprayed. For cinnamon/sugar, parchment or foil will ensure that they come out with all the yummy nuggets intact.

Knock the (by now puffy and wobbly) dough out onto a floured counter and nudge it into a rectangle to divide easily into 3 pieces. Try not to handle the sticky dough too much or the butter will start leaking out and it will get even softer and stickier.

For a plain loaf, fold  one piece like a letter -- two edges onto the center. Ease it into the prepared pan, trying to aim the seam into the middle.

For a cinnamon loaf, you can sprinkle cinnamon sugar (200 g sugar/25 g cinnamon) on the rectangle, fold it and place it in the pan that way, or the more fun, less pristine way which is the "monkey bread method": have the cinnamon sugar in a wide bowl; cut off chunks of the risen dough about the size of golf balls or prune plums -- 1 1/4" or so? -- and toss them in the cinnamon sugar. Pile them in the loaf pan, still handling lightly.

Cover the loaf (loaves) with a towel and let the dough rise until it comes up to the top of the pan -- depending on how lively the starter is, it will take about an hour.

Bake in a 350 oven until the brioche is well-browned and the crust is springy/firm to the touch. The cinnamon loaf will color much faster because of the sugar on the outside, but it should take about 30 minutes.

the plain loaf -- nicely golden.
Let the brioche cool in the pans until you can comfortably hold a pan, then turn the loaves out to cool completely. Brioche cuts well with a serrated knife, but you can also just pull chunks off the cinnamon loaf willy-nilly...

Quick note: apologies for the lack of pix in this post... I'm still trying to figure out good lighting in this new kitchen.


Tuesday, July 3, 2018

Rainbow Chromatic/CMYK Croissants! Or, Ally baking.

I actually started these last Sunday after my croissant and brioche class (hi everyone who came from that!), the day of the New York Pride parade. But I didn't actually have time to finish them until this Saturday, the very last day of Pride Month -- skating in just under the wire to support the LGBTQIA+ community, and finally get an idea out of my head and into the world.

UPDATED with more pictures -- scroll down!

You've probably seen this London hotel's rainbow croissants, but I've never seen a recipe or technique that goes with it. And I wanted to make the colors run parallel to the croissant's sections, rather than perpendicular, so each one would be more likely to display all the colors side by side.

I started with a batch of croissant dough, made the usual way with 3 single folds. 
While that rested, I made a small batch (approximately 300 g of flour) of "dead dough" -- the detrempe without the yeast. I used all milk for extensibility, and all-purpose flour because I knew I'd be handling it a lot just to mix the colors in. I divided this dough into three pieces and colored one with egg yellow, one with sky blue, and one with rose pink/red red. (Gel colors rather then liquid, so the dough didn't get too soft.) I then took about a third from each and mixed them with each other to create green, orange and purple/violet doughs. Wrapped and chilled to relax the considerable gluten developed.


Cut to Saturday! Little 2 helped me -- actually she bugged me to make them even though I said it was too hot. I'm glad she did though, I would not have persevered if not for her!


 I figured out that my best bet for making the color strips very even was using a pasta machine. So each color was run through with a bit of flour to make a piece with consistent thickness.


I handcut strips and stacked them, slightly overlapping, to make the rainbow. (You'll see I tried a few different sequences of colors) 





Going through the pasta roller a few times to make the whole piece thinner. I stopped on setting 4. 




These went into the fridge.



Rolled out half of the plain dough, dabbed it with water to make the color panels stick.


Rolled over a few times to make sure they adhered well, then chilled a good while. I had to cut this piece in half to fit it in the fridge...

  
Rolled out again, to about 10 inches wide, then cut in triangles. Notice the different sequences...

 rolled into the familiar croissant shape, and set onto silpat-lined pans to proof.



I use a half sheet plastic cover to prevent them from drying out but also so nothing sticks to the soft dough and chances ripping the surface. 

 

I decided not to eggwash them so they retained more of their color instead of being yellow-tinged, but of course if it matters to you to be authentic you can eggwash them.. or brush them with glaze after baking.


Et voila -- Croissants arc en ciel! Happy Pride everyone... We are chuffed that these worked as well as they did. Next time I will try to make the orange truer in tone, make the color dough sheets thinner if I can, and pick a cooler/less humid day to do them!



UPDATE: We made them again ! 





This time I didn't use a pasta machine and just laid the colors out in wide panels striped parallel to the long sides of the rectangle -- i got a few that were each color, and a few i cut perpendicular to get as many colors on there as I could. It was much easier but each croissant was not as rainbow-y. I also used a much truer-toned blue color so it came out brighter in the baked finish. I think the happy medium is between the two tho!

Tuesday, March 13, 2018

sourdough potato bread color experiments...

Fun with spuds! This idea had been playing around in my head for awhile, and when there were some beautiful purple fingerlings in a mixed bag I knew it was a sign that this 3-color potato bread needed making, in time to tweak a bit before Easter.
I started with the same potato/sweet potato bread used to make the hotdog buns -- by now a mere cousin of RLB's Bread Bible and blog version. I doubled the potato and used high-gluten flour in the main dough to compensate, and added some liquid starter for flavor and ease of shaping. (I don't use the milk powder or butter for allergy reasons.)

This makes one showy loaf  about 14 inches long but relatively flat, as braids go. (If you want a deeper/taller slice, you could rise and bake this in a pan, or make the ropes shorter and fatter.)
First the potatoes: boiled a regular (white) potato and the purple Vilotte (i think, they weren't labelled) fingerlings until tender, then drained and mashed. The sweet potato i cooked like i normally do: in the microwave, then mashed. I ended up with about 70-80 g of each.
Cooked and mashed potato varieties. They are in matchy bowls because i can. :D
 The sponge is mixed as normal and risen, using the potato cooking water. I then completed the dough as one, then divided it in three parts to knead in the colors of potatoes, but you might find it easier to divide the sponge into three bowls and add the other ingredients to form separate colored doughs.
The completed doughs -- kneading in the potato and oil or vegan butter. It's unintentionally a big smiley.
Shape each into a ball  then let rise covered until doubled. I put them right on a nonstick mat.
Before the first rise, and after the second.
Punch down and envelope fold, then rise another time; it should take about 45 minutes each time.
To shape, press one round into an oval, then roll up and pinch the seam so you have a tube with pointed ends, like a football... press out any big gas bubbles as you roll. Elongate the rope slightly, but keep the middle a bit thicker and the ends pointed. Do the same with the other two colors, lay them side by side, and start braiding from the middle.
Press the ends together and tuck them in. Flip the pan and braid the other end the opposite way, keeping the tension even... this keeps the shape consistent.
Cover (I use another pan to make sure there won't be sticking) and let the braid rise until it about doubles, about another 40 minutes. It should feel puffy, almost wobbly, when pressed with a fingertip.
Bake at 375 about 30 minutes. (I don't like eggwashing savory breads that don't have egg in them, especially ones that color well on their own, but you do you!)  It's done if you hear a hollow sound when tapping lightly underneath. 
Nicely colored! As you can see the white and purple strands broke a little as they rose and oven-sprang... 
The braid will have a crunchy crust when it comes out, but that will soften as it cools and the moisture distributes evenly.
My braid looked fine when it went into the oven, but as it rose and baked, the regular and purple ropes kind of fell out compared to the orange. It might be because of extra moisture from boiling, so next time I'll cook all the potato types by the same method and give up having cooking liquid in favor of ropes that keep their shape. (Of course, there will be an update when I accomplish that!)

Let the braid cool to the touch before you slice... even with the potato, it's a delicate crumb that will crush and gum up if it's too hot. But look how pretty!