These delicious, golden glazed Buttermilk Brioche Buns have a soft, tender crumb, and come together, start to finish, in less than an hour!
Place butter and buttermilk in a medium-size microwave-safe bowl or cup and cook on high for 1 minute. Stir and then cook for another 20 seconds. Check the temperature of the mixture with your finger. It should feel very warm to the touch, but not so hot you pull back your finger. Continue to cook in 10-second increments until proper temperature is reached, 120-130˚F.
Add buttermilk and butter to the flour mixture. Mix, with the dough hook, until well combined, then add the egg and remaining 1 1/4 cups of flour. Knead at medium-low speed (#3 on a KitchenAid stand mixer) for 5 minutes. Add more flour (up to 1/4 cup), 1 tablespoon at a time until the dough starts to leave the sides of the bowl.
Transfer dough to a well-floured work surface. Turn to coat all sides of the dough with flour. Divide the dough into 10-12 pieces. Shape into round rolls - (see technique above in the post).