Caramel Icing
["1/2 c. margarine", "1 c. brown sugar", "1/4 c. milk", "2 c. powdered sugar", "1/2 tsp. vanilla"]
["Melt margarine and blend in brown sugar.", "Cook over low heat for 2 minutes, stirring.", "Add milk and continue stirring until mixture comes to a boil.", "Remove from heat.", "Blend in powdered sugar gradually.", "Add vanilla and mix well."]
["margarine", "brown sugar", "milk", "powdered sugar", "vanilla"]