Potato Cake
["2 c. sugar", "1 c. butter or oleo", "4 eggs, separated (add yolks, beat whites)", "1 c. mashed potatoes", "1 c. milk", "2 c. sifted cake flour", "1 Tbsp. vanilla", "1 tsp. cinnamon", "2 Tbsp. cocoa", "1/2 tsp. allspice", "3 tsp. baking powder", "1/2 tsp. salt", "1 c. pecans"]
["Cream butter and sugar together; add well-beaten egg yolks. Add mashed potatoes, then add milk and dry ingredients alternately.", "Beat egg whites until very stiff and fold into mixture carefully.", "Pour into three (9-inch) cake pans, greased and floured.", "Bake 20 minutes in a 350\u00b0 oven.", "Frost with your favorite chocolate icing."]
["sugar", "butter", "eggs", "potatoes", "milk", "cake flour", "vanilla", "cinnamon", "cocoa", "allspice", "baking powder", "salt", "pecans"]