Mrs. Guy Foster'S Chocolate Icing
["2 c. sugar", "3 sq. chocolate", "2/3 c. margarine or butter", "2/3 c. milk", "dash of salt"]
["Mix together in saucepan.", "Let come to a boil for 4 to 5 minutes.", "Remove from heat and cool in a pan of ice water and beat until right consistency to spread.", "Put butter in in the beginning."]
["sugar", "chocolate", "margarine", "milk", "salt"]