Ingredients

• 2.5 cups all-purpose flour
• 2 tablespoons baking powder
• 1 teaspoon salt
• 0.25 cups sugar
• 0.25 cups butter or margarine
• 1.5 cups leftover mashed potatoes
• 1 egg , beaten
• 0.33 cups cold water
• 0.33 cups milk
• 2 tablespoons milk , or as needed

Instructions

1. 1 Preheat the oven to 450 degrees F (230 degrees C). Line a baking sheet with parchment paper.
2. 2 In a medium bowl, stir together the flour, baking powder, salt, and sugar. Cut in butter, until pieces of butter are no larger than peas. Use a fork to stir in mashed potatoes, breaking them up into chunks. Make a well in the mixture, and pour in egg, water and milk. Stir into a loose dough using the fork.
3. 3 Turn dough out onto a floured surface, and knead for 6 or 8 times so the dough holds together. Pat the dough out to about 3/4 inch thickness, and cut into circles with a biscuit cutter or drinking glass. Place biscuits onto the prepared baking sheet. Brush the tops with 2 tablespoons milk.
4. 4 Bake for 15 to 20 minutes in the preheated oven, or until bottoms are golden.

Nutrition per serving