Minute Fudge Frosting
["3 Tbsp. cocoa", "1/3 c. evaporated skim milk", "1 c. sugar", "1/4 c. margarine", "1 tsp. vanilla"]
["Mix all ingredients, except vanilla.", "Bring to a boil and simmer for 1 minute.", "Remove from heat.", "Add vanilla and beat until thick enough to spread."]
["cocoa", "milk", "sugar", "margarine", "vanilla"]