Step 1

In a large bowl or the bowl of a stand mixer, dissolve the yeast in warm water.

Step 2

In a small microwave-safe bowl or measuring cup, add the milk, mashed potatoes, and 4 tablespoons of butter.Heat on high for one minute, stir, then heat for an additional 30-60 seconds, until the butter is melted and the milk is warm but not hot.

Step 3

Add the milk mixture, sugar, salt, and egg to the yeast mixture.

Step 4

Add two cups of flour, and mix to combine. Mix in additional flour, ¼ cup at a time, to form a soft dough that pulls away from the sides of the bowl.

Step 5

Knead until smooth and elastic, about 6-8 minutes. Shape the dough into a ball, place in a greased bowl, cover, and let rise for about one hour, until doubled.

Step 6

After one hour, gently punch the dough down. Preheat the oven to 400°F. Divide the dough into 24 pieces and shape each piece into a ball. Place the balls of dough on a greased or parchment-lined baking sheet.Cover and let rise for 30-60 minutes, until the dough springs back when touched lightly.

Step 7

Bake 10-12 minutes, until golden brown. Brush with the remaining 2 tablespoons of butter. Serve warm.