Whole wheat Japanese milk bread

for the tangzhong:

3/4 cup water

1/4 cup King Arthur Unbleached Bread Flour

for the rest:

3/4 cup whole milk

2 1/4 tsp active dry yeast (1 packet)

4 1/2 cups (525 g) King Arthur White Whole Wheat Flour

1/2 cup rolled oats (optional; if not using, you may want to add another 1/4 to 1/3 cup White Whole Wheat Flour)

1 1/2 tsp salt

1/3 cup sugar

2 tbsp milk powder

3/4 cup heavy whipping cream

2 eggs

6 tbsp (3/4 stick, or 85 g) butter

for baking:

1 egg and a splash of milk or cream (optional)

1/2 cup rolled oats (optional)

Instructions

The night before baking: In a small saucepan, whisk together 3/4 cup water and 1/4 cup bread flour until no lumps remain. Heat the mixture over medium-low heat, whisking constantly, for about 2-3 minutes. The mixture should thicken to a gel-like consistency. As soon as lines appear in the mixture when stirred, remove from heat and transfer to a small, clean bowl. Let cool to room temperature.

Next, heat the milk briefly to just above room temperature, about 110 degrees or lukewarm to the touch. I do this simply by microwaving it for 10 seconds. Sprinkle the yeast over the milk and set aside for 5-10 minutes for the yeast to activate. The milk should foam.

In the meantime, sift together the white whole wheat flour, oats (if using), salt, sugar, and milk powder in a large bowl. In a smaller bowl or a measuring cup, whisk together the tangzhong, cream, and egg.

When ready, add the milk and yeast mixture to the wet ingredients, then make a well in the flour mixture and pour in the wet ingredients. Stir with a wooden spoon or spatula until the mixture forms a loose, shaggy dough. At this point, let the dough rest for 20 minutes before kneading.

Knead for 4-5 minutes, or until the dough forms a semi-smooth ball. The dough will be very, very sticky, though it should hold its shape and should not be gloppy. I found it sufficient to “knead” by using my spatula to fold the dough in on itself repeatedly.

Add the butter to the dough in batches, two to three tablespoons at a time, kneading after each addition. Add the next batch of butter only after the first has been fully incorporated. Here, I found it easier to use my hands — the butter should help the dough from sticking to your hands. Knead for an additional 4-5 minutes, or until butter is fully incorporated. Dough will still be a bit craggy. No worries. The long rise will help.

Place the dough in a large bowl with plenty of room and cover with plastic wrap or a damp towel (or these wonderful dough caps). Let the dough rise overnight in the refrigerator, about 10-12 hours or at least 6 hours. The dough should be fine for up to 24 hours. If planning to do a two-day rise, decrease the yeast to 1 1/2 tsp. (Note: The dough will also be fine with a traditional 1- to 2-hour rise on the countertop at room temperature, but I prefer the overnight rise to give the whole wheat flour time to hydrate and the gluten extra time to develop. Also, this longer rise will soften the bran nicely.)

The day of baking: Line a 9×13 glass or metal baking dish with parchment paper, or butter it well. Once the dough is doubled, turn it out and roll it into a large rectangle. Cut into 24 equal pieces (for regular dinner rolls) or up to 32 or 36 for mini dinner rolls. For each piece, tuck the edges into the middle of the ball to form a smooth-topped ball, and roll a few times to create a bit of tension on the top. (Here’s a great video illustrating how. If you’re shaping these cold out of the fridge, this dough will be sturdier and less soft than the video shows, but the concept is the same.) Place seam-side down in the baking dish with the sides barely touching the next ball. Let proof until nearly doubled, another hour or so.

After about 40 minutes, preheat the oven to 350 degrees. Test the dough by pressing gently with one finger; when the indentation bounces back slowly but remains visible, the dough is ready to bake. Whisk an egg with a splash of cream and brush the egg wash over the dough. Sprinkle with oats, if you like. Bake for about 25-30 minutes, or until golden-brown on top. When it’s done, the bread will sound hollow when tapped (or, if you have one of these most magical Thermapens, should be about 190-200 F in the center). Let cool briefly, then enjoy warm.

Find it online: https://tworedbowls.com/2016/05/24/whole-wheat-milk-bread/