Brioche Buns

steps

1. In a small bowl, mix yeast, sugar, and warm water. Let sit for 5 to 10 minutes to activate yeast.
2. Using a stand mixer fitted with a paddle attachment, combine flour, salt, yeast mixture, 1 egg, and warm milk. Add butter 1 tablespoon at a time and mix until a soft dough forms. Switch to a dough hook attachment and knead dough for 8 to 10 minutes, or until smooth. Place dough in a greased bowl, cover, and let rise until doubled in size, 1 to 1½ hours.
3. Once risen, punch down dough, divide into 8 portions, and shape into buns. Place on a parchment-lined sheet and let rise for an additional 30 to 40 minutes.
4.  Preheat oven to 375 degrees. In a small bowl, beat remaining egg with a fork. Brush buns with egg wash and sprinkle sesame seeds on top if using. Bake for 15 to 20 minutes until lightly golden. Let cool before slicing.