Black Walnut Cake
["1/2 c. butter", "2 c. sugar", "4 eggs, separated", "3 c. flour", "2 tsp. baking powder", "1 c. sweet milk", "1 tsp. vanilla", "1/2 lb. black walnuts, ground"]
["Cream butter and sugar until fluffy.", "Add egg yolks.", "Beat well.", "Sift flour and baking powder together.", "Add alternately with milk and vanilla.", "Beat thoroughly after each addition.", "Beat egg whites until stiff.", "Fold nuts in batter, then egg whites. Pour into a greased tube pan.", "Bake at 375\u00b0 for 50 to 60 minutes."]
["butter", "sugar", "eggs", "flour", "baking powder", "sweet milk", "vanilla", "black walnuts"]