Burger Buns

INGREDIENTS:

For Tangzhong:

2 tablespoons (20g) bread flour 

2 tablespoons (27g) water 

4 tablespoons (60g) whole milk 

For Dough:

1/2 cup(120g) whole milk @ 95f (30c) 

1 tablespoon (9g) instant yeast 

2.5 cups (320g) Bread flour 

1 teaspoon (7g) fine sea salt 

2.5 tablespoons (35g) granulated sugar 

1 whole egg 

1 egg yolk 

3 tablespoons (42g) unsalted butter, softened

For Egg Wash:

1 whole egg 

Splash of whole milk