Hamburger Buns

2 1/2 tsp yeast

1 1/3 c milk, heated to about 115 F (should be warm, not hot)

1 1/2 tsp + 2 T sugar

4 c flour

1 1/4 tsp kosher salt

1 egg

4 T softened unsalted butter, cut into 1/2" cubes

canola oil or nonstick spray

3 tsp sesame seeds (optional)

In bowl of stand mixer, stir together yeast, milk, and 1/2 tsp sugar, let foam.  Stir in remaining sugar, 3 c flour, salt and egg.  Stir with paddle or dough hook until dough comes together, then knead butter in using dough hook.  Add remaining cup of flour a little at a time until dough is no longer sticking to the bowl.  Continue to knead, about 8 minutes total.  Transfer dough to greased bowl, cover, and let rise until double.  Heat oven to 400.  Divide dough into 12 portions (I divide dough into 4 pieces, then split each fourth into 3 pieces) and shape each piece into a tight ball.  Place balls on a greased baking sheet and let rise until about double.  Uncover dough, and if you want sesame seeds on the buns, spray each dough round with water from a spray bottle and sprinkle with the sesame seeds.  Bake until golden, 15-20 minutes.  Remove to rack to cool.  
Source: Saveur Magazine.