To a stand mixer add the following then mix on low for 10-20 seconds to incorporate yeast.
1 cup warm whole milk, 7 grams active dry yeast, 4 tbsp white sugar
To this mixture add 2 whole eggs + 1 egg yolk - Mix on low for 10-20 seconds.
To this add the following ingredients and then mix for 2-5 minutes on low until the dough is "shaggy" (not smooth but not loose).
3 cups bread flour, 3/4 tsp dough conditioner, 4 tsp milk powder, 3 tsp diamond crystal kosher salt
To this mixture add 3 tbsp of soften butter. Knead this mixture for 2-3 minutes until the dough is soft and smooth.
Put some flour on your work surface and your hands.
Place your dough onto the flour and work into a dough ball.
Grease a bowl with 1 tbsp of a neutral oil. Place dough ball into bowl and cover with saran wrap. Allow to proof for 1 hour and 30 minutes.
Take the dough ball out and punch/de-gas it.
Cut and separate into 8 equal sized balls (roughly 90-100 grams). Pinch seams underneath and roll into smooth balls.
Place onto a baking sheet with parchment paper or similar non-stick.
Preheat over to 350F.
Optional: In a bowl combine 1 egg and 1 tbsp water and mix. Brush surface of rolls with egg wash.
Bake on the middle rack for 30 minutes. Internal temperature should be around 203F when done.
Optional: Melt some butter and use a basting brush to brush the tops.