Cocoa Frosting
["2 c. sugar", "3 Tbsp. cocoa", "1 stick margarine", "1/2 c. milk", "1 tsp. vanilla"]
["Cook over medium heat. Boil 2 to 3 minutes.", "Pour over your favorite plain cake cooked in a sheet pan.", "Punch holes in cake so frosting will soak in it."]
["sugar", "cocoa", "margarine", "milk", "vanilla"]