1¼ cups lukewarm water
2 teaspoons instant yeast
½ cup sugar
1½ teaspoons kosher salt
2 tablespoons soft butter
2 egg yolks
4 cups bread flour
½ cup buttermilk powder or any powdered milk
Combine all the ingredients in the order as written. Mix on medium for 5 minutes or until smooth with a dough hook. Transfer the dough into a greased bowl, cover tightly with plastic film, and let rest on the kitchen counter for 1 hour.
Lightly knead the dough and divide into 12 pieces. Shape into rounds and a deep slash right down the middle of monay. This is a dense roll but if you want a softer version, then let it rise for 30 minutes after shaping the rolls.
Preheat oven to 400°F and bake until golden for about 15 minutes.