2/3 c. cocoa
1/2 tsp. salt
1 tsp. baking powder
3 c. cake flour
2 sticks butter
1/2 c. solid vegetable shortening
3 c. sugar
1 1/4 c. milk
5 eggs
1 tsp. vanilla

Blend cocoa with salt, baking powder and cake flour. Sift three times. In separate large bowl cream butter, shortening and sugar. Add eggs one at a time, beating after each. Add cocoa mixture to butter mixture alternately with milk. Stir in vanilla.

Bake in a greased 10-inch tube pan at 325 degrees for 1 1/2 to 2 hours. Do not open oven door until after 1 1/2 hours. Cool and frost. (Can be baked in three 9-inch layers at 325 degrees for 30 minutes.)