Filling For Devil'S Food Cupcakes
["1/2 c. margarine", "1/2 c. shortening", "1 c. sugar", "3/4 c. lukewarm milk", "1 tsp. vanilla"]
["Make devil's food cupcakes using mix.", "Bake and let cool. When cold, cut circle out of top of each.", "Fill with following filling and replace top."]
["margarine", "shortening", "sugar", "milk", "vanilla"]