Italian Cream Cake

1 stick butter 1/2 C shortening 2 C sugar 5 egg yolks 2 C flour 1 t baking soda 1 C buttermilk 1 t vanilla 1 small can cocoanut 5 stiff egg whites

In bowl # 1 cream the butter and shortening until smooth. Add egg yolks one at a time mixing well after each addition. Add sugar last. In bowl # 2 Sift flour and baking soda. Mix vanilla in with the buttermilk while still in the measuring cup. In bowl # 3 whip the egg whites until they form stiff peaks. Alternately blend the flour mixture and the buttermilk into the creamed mixture....starting and ending with flour. Finally fold in the egg whites.