Dough knife (for portioning -- you can use a regular knife too)
Ingredients
1cupwarm water
2 ¼teaspoonsactive dry yeast12g
4tablespoonssugar55g
⅓cupsourdough discardroom temperature, 100g
¼cupwhole milkroom temperature
1egg yolkroom temperature
2tablespoonsunsalted buttersoftened and cubed, 28g
4 ¼cupsAP flour510g
2teaspoonssalt
sesame seedsto taste
1eggfor egg wash
Instructions
In the bowl of a stand mixer or large mixing bowl, mix warm water, sugar, and baker's yeast. Let rest until it begins to bubble and bloom.
Add milk, butter, sourdough discard, egg, flour, and salt to the mixing bowl. Knead on low speed until the dough can pass the windowpane test.
Cover with cling wrap or a clean damp tea towel and let rest for roughly an hour or until it has doubled in size. Once doubled, turn out onto a lightly floured surface.
Portion dough into 8 equal balls (each 123-125g in weight). Let rise for 30 minutes or until puffy.
Coat in an egg wash and sprinkle with sesame seeds. Bake in the oven for 15-17 minutes at 400F or until the buns are golden. Use the middle or upper rack to prevent burned bottoms. Rotate the pan halfway through to get an even browning on the tops.
Notes
For the most reliable results, use a kitchen scale.
Hint: When taking the risen dough out of the bowl it was proofed in, wet your fingers to prevent the dough from sticking to you!
Bake these in the middle or top rack of your oven to prevent overly brown/burnt bottoms!
Store at room temperature for 5-7 days. Can be frozen for up to 6 months!