Pineapple Icing
["2 c. sugar", "1/2 stick margarine", "1 tsp. vanilla", "1 c. evaporated milk", "1 large drained can crushed pineapple"]
["Bring to a rolling boil sugar and milk.", "Cook 7 minutes.", "Add margarine, pineapple and vanilla.", "Pour over yellow cake."]
["sugar", "margarine", "vanilla", "milk", "pineapple"]