1In a pan over medium heat, mix 3 tablespoons of water and 3 tablespoons of whole milk.
2Add 2 tablespoons of bread flour and mix until a paste forms (2-3 minutes).
3Set aside to cool.
4In a large bowl, combine 2.5 cups of bread flour, 1/3 cup melted butter, 0.5 cup whole milk, 4 tablespoons of sugar, 1 tablespoon of yeast, 2 tablespoons of dry milk powder, and 1 teaspoon of salt.
5Add 1 egg and the cooled starter.
6Mix for 10 minutes on medium speed with a stand mixer.
7Place the dough in a lightly greased bowl, cover, and let proof for 1-1.5 hours or until doubled in size.
8Turn the doubled dough onto a lightly floured surface and divide into six pieces.