30 g unsalted butter, at room temperature, cut into 4 pieces
9 g tsp salt
1 large egg
Egg Wash
1 egg
1 tbs milk
Directions
Prep: Line a baking sheet with parchment.
Activate Yeast: In mixer bowl, combine water, milk, sugar, and yeast; let stand ~5 minutes until foamy.
Mix Dough: Add flour, salt, and egg; mix on low with paddle. Add butter pieces and mix until combined.
Knead: Switch to dough hook; knead 8-12 minutes until smooth and slightly sticky. Add 1-2 tbs flour if too sticky.
Shape: Transfer to floured surface, knead briefly, form a ball. Divide into 8 pieces, shape into balls, and place on sheet. Cover and rest 15-30 minutes.
Egg Wash: Preheat oven to 400°F. Mix egg and milk; brush tops of buns.
Bake: Bake 17-20 minutes until golden. Optional: brush warm buns with melted butter.
Chef's Notes
Avoid adding too much flour—this makes buns dense instead of light and fluffy.
The dough should stick slightly to your finger when touched but still be workable for shaping.