Chocolate Pound Cake
["1/2 c. butter", "1/2 c. shortening", "3 c. sugar", "3 c. flour, sifted", "1/2 tsp. baking powder", "1 1/4 c. milk", "1/2 tsp. salt", "5 eggs", "1 tsp. vanilla", "1/2 to 1/4 c. cocoa"]
["Cream together the sugar and butter.", "Add shortening.", "Add eggs, one at a time.", "Sift the dry ingredients and add alternately with milk.", "Mix in vanilla.", "Bake in greased tube pan for 1 1/2 hours at 325\u00b0."]
["butter", "shortening", "sugar", "flour", "baking powder", "milk", "salt", "eggs", "vanilla", "cocoa"]