Mashed Potato Rolls

Ingredients (13)

• 1 package (1/4 ounce) active dry yeast
• 1/4 cup warm water (110° to 115°)
• 1-3/4 cups warm milk (110° to 115°)
• 1/4 cup butter, softened
• 1/4 cup vegetable oil
• 6 tablespoons sugar
• 1 egg
• 1/2 cup warm mashed potatoes (prepared with milk and butter)
• 1-1/2 teaspoons salt
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 6 cups all-purpose flour
• Melted butter, optional