POTATO ROLLS

Steps:

• Place potatoes in a medium saucepan; cover with cold water. Bring water to a boil; reduce to a simmer. Cook potatoes until knife-tender, about 15 minutes. Drain, reserving 1/2 cup of the liquid. Mash potatoes; set aside.
• Cool reserved liquid to 105 degrees. In the detached bowl of an electric mixer, whisk liquid, yeast, and pinch of sugar. Set aside until mixture is foamy, about 10 minutes.
• Attach bowl to electric mixer fitted with the dough-hook attachment. With the mixer on low, add remaining sugar, reserved potatoes, buttermilk, 4 tablespoons melted butter, and salt. Gradually add enough flour to make a slightly sticky dough. Knead dough until smooth, about 2 minutes. Brush a mixing bowl with butter. Place dough in bowl; cover bowl with buttered plastic wrap. Set aside to rise until doubled, 1 to 1 1/2 hours.
• Heat oven to 375 degrees. Line 3 large baking sheets with parchment. Turn dough out onto a floured work surface. Using a floured rolling pin, roll dough out 3/4 inch thick. Cut dough into 2-inch-wide strips. Cut strips into triangles or squares; place at least 1 1/4 inches apart on baking sheets. Brush tops with remaining melted butter; cover with buttered plastic wrap. Let rise until dough does not spring back when pressed with a finger, 15 minutes. Bake until golden, 18 to 20 minutes; serve.