Mill the flour on the finest setting for your mill.

Make the Yudane: mix 17 g of flour (2 tbsp) and mix it with the 33 g of boiling water in a small dish.

Add water, Yudane, and sugar to a mixing bowl and begin mixing on low speed.

Slowly add the remainder of flour to the mixing bowl as it spins, being careful to keep hands and utensils out of the mixing bowl, and let mix for about 5-7 minutes.

Sprinkle the yeast, salt, and vitamin c into the dough, and let it mix for another few minutes until a windowpane consistency has been reached. This is done by turning off the mixer, and gently and slowly stretching the dough to see if light can be seen through it before breaking. If so, you've reached windowpane, and can move on. If your dough looks tough or dry, you can slowly drizzle water in during the mixing until it is a consistency you like.

First Rise (optional): Let the dough rise, covered, until doubled.

Punch down the dough doesn't mean literally punch it, but you can if you like. Gently pull up on one side of the dough, and gently press it into the center of the dough ball. Turn the bowl by a quarter, and repeat until you've done this 4 times. This helps ensure a consistent dough temperature.