Chocolate Sour Cream Cake
["3 c. sifted flour", "1/2 tsp. baking powder", "1/2 c. baking cocoa", "1 c. margarine, softened", "1/2 c. shortening", "3 c. sugar", "5 eggs", "1 c. sour cream", "1/2 c. milk", "2 tsp. vanilla extract"]
["Mix flour, baking powder and baking cocoa in bowl.", "Cream margarine, shortening and sugar in large mixer bowl until light and fluffy.", "Add eggs 1 at a time, beating well after each addition.", "Add flour mixture alternately with sour cream and milk, beating well after each addition.", "Stir in vanilla.", "Pour into greased and floured 10-inch tube pan.", "Bake at 325\u00b0 for 1 1/2 hours.", "Cool in pan for several minutes.", "Invert onto serving plate.", "Yield:", "16 servings."]
["flour", "baking powder", "baking cocoa", "margarine", "shortening", "sugar", "eggs", "sour cream", "milk", "vanilla extract"]