Disappearing Chocolate Cake
["1/4 cup butter", "1/2 cup shortening", "2 cups sugar", "1 tsp. vanilla", "2 eggs", "1/4 cup Hershey's Cocoa", "1 3/4 cup unsifted flour", "3/4 tsp baking powder", "3/4 tsp baking soda", "1/8 tsp. salt", "1 3/4 cup milk"]
["Grease and flour 2 nine inch round pans.", "Cream shortening, butter, sugar and vanilla until fluffy.", "Do not rush this step as the cake is not nearly as good.", "Blend in eggs.", "In a seperate bowl, combine cocoa, flour, baking powder, baking soda and salt. Add alternately with milk to batter.", "Blend well on medium speed. Pour into pans.", "Bake at 350\u00b0 for 30 to 35 minutes or until tests done.", "Cool 10 minutes, remove from pans."]
["butter", "shortening", "sugar", "vanilla", "eggs", "Cocoa", "flour", "baking powder", "baking soda", "salt", "milk"]