German Spent Grain from Beer Making Bread Recipe (Biertreberbrot) follows:
https://www.thespruceeats.com/spent-grain-bread-recipe-1447221
This basic recipe can probably be modified for pizza dough, donuts, and buns as well.
Reposted by Ruth Paget, author Eating Soup with Chopsticks and Marrying France and developer of the Gambrinus Beer Game