makes a bunch 5 cups white flour 4 tsp baking powder 1 tsp baking soda 1 1/2 tsp salt 1/2 tsp cinnamon 1 cup mashed potatoes 1 1/2 cups sugar 2 eggs 1/4 cup melted butter 1 cup buttermilk 1 tsp vanilla 1/2 tsp grated lemon rind oil for frying powdered sugar or granulated sugar cinnamon ( optional ) sift together flour , baking powder , baking soda , salt , and cinnamon .