Pineapple Icing
["1 c. sugar", "1 c. evaporated milk", "1 stick margarine", "3 egg yolks", "1 tsp. vanilla", "1 large can crushed pineapple, drained"]
["Combine all ingredients except pineapple.", "Cook over medium heat for 12 minutes or until thick.", "Stir constantly.", "Remove from heat and add pineapple.", "Spread on cooled cake."]
["sugar", "milk", "margarine", "egg yolks", "vanilla", "pineapple"]