Potato Cake(Recipe Over 100 Years Old)  
["2 c. sugar", "1/2 c. butter", "2 eggs", "1 c. boiled and mashed red Irish potatoes, cooled", "2 c. flour", "1 tsp. cinnamon", "1 tsp. ground cloves", "4 sq. unsweetened chocolate, melted and cooled", "1/2 c. sweet milk", "1 tsp. nutmeg", "1 1/2 tsp. baking powder", "1 c. black walnuts"]
["Cream together sugar and butter.", "Add eggs; beat well after each addition.", "Add cooled potatoes and chocolate.", "Sift together flour, baking powder and spices.", "Add to cake mixture alternately with milk, beginning and ending with flour.", "Add black walnuts; this helps to make the cake.", "Pour into two 9-inch lightly greased and floured pans and bake at 325\u00b0 to 350\u00b0 according to your stove. Let cool and frost with Potato Cake Icing."]
["sugar", "butter", "eggs", "potatoes", "flour", "cinnamon", "ground cloves", "unsweetened chocolate", "sweet milk", "nutmeg", "baking powder", "black walnuts"]