Cooked Chocolate Fudge Frosting
["2 c. sugar", "1 c. milk", "2 Tbsp. corn syrup", "2 sq. unsweetened chocolate", "2 Tbsp. margarine", "1/2 tsp. vanilla"]
["Combine sugar, milk, corn syrup and chocolate squares and cook to soft ball (234\u00b0).", "Add margarine and vanilla.", "Cool to lukewarm before beating.", "Beat until creamy and shiny appearance has disappeared.", "Spread on cake."]
["sugar", "milk", "corn syrup", "unsweetened chocolate", "margarine", "vanilla"]