Mashed Potato Cake
["1/2 c. oleo", "1/2 c. milk", "1 tsp. vanilla", "2 c. sugar", "4 egg yolks", "1 c. hot mashed potato", "1/2 c. cocoa", "3 tsp. baking powder", "1/2 tsp. cinnamon", "1/2 tsp. salt", "1/3 c. warm milk", "1 c. chopped walnuts"]
["Cream oleo, milk, vanilla, sugar and yolks.", "Add 1 cup potatoes.", "Sift cocoa, baking powder, cinnamon and salt.", "Mix with warm milk.", "Beat 4 egg whites and fold in.", "Add chopped walnuts. Bake at 350\u00b0 for 50 minutes."]
["oleo", "milk", "vanilla", "sugar", "egg yolks", "hot mashed", "cocoa", "baking powder", "cinnamon", "salt", "warm milk", "walnuts"]