Walnut-Coconut Cake
["1/2 c. butter", "2 c. sugar", "1 c. buttermilk", "2 1/2 c. cake flour", "1 1/2 c. chopped walnuts", "1/2 tsp. cream of tartar", "1/2 c. shortening", "5 eggs, separated", "1 tsp. baking soda", "1 tsp. vanilla", "1 (3 1/2 oz.) can flaked coconut"]
["Cream butter and shortening; gradually add sugar, beating until light and fluffy.", "Add egg yolks, one at a time, beating well after each addition.", "Add sifted dry ingredients alternately with the buttermilk.", "Stir in vanilla.", "Add chopped walnuts and coconut, blending well.", "Beat egg whites with cream of tartar until stiff peaks form.", "Fold egg whites into batter.", "Pour batter into 3 greased and floured 9-inch round cake pans and bake at 350\u00b0 for 30 minutes or until done.", "Cool completely and frost with cream cheese frosting and sprinkle with chopped walnuts."]
["butter", "sugar", "buttermilk", "cake flour", "walnuts", "cream of tartar", "shortening", "eggs", "baking soda", "vanilla", "flaked coconut"]