Ho - Ho Cake
["1 pkg. Devils Food cake mix", "3/4 c. powdered sugar", "2/3 C. vegetable shortening", "1/2 C. butter or margarine", "5 oz. can evaporated milk", "pinch of salt", "2 tsp. vanilla"]
["Mix cake according to the package and put in greased and floured jelly roll pan (10 x 15-inch) and bake; cool."]
["cake mix", "powdered sugar", "vegetable shortening", "butter", "milk", "salt", "vanilla"]