3/4 c. butter
1 1/2 c. sugar
3 eggs, separated
1 1/2 tsp. vanilla
1 tsp. red food coloring
2 1/4 c. sifted cake flour
1/2 c. cocoa (regular type dry)
3 tsp. baking powder

Cream butter and sugar until light. Add egg yolks, one at a time, beating well after each. Add vanilla and food coloring. Sift together dry ingredients. Add to creamed mixture alternately with 1 cup cold water, beating after each addition. Beat egg whites to stiff peaks. Fold into batter. Bake in 2 greased and floured 9 x 1 1/2 inch round pans at 350 degrees for 25 minutes.