Chocolate Cake Icing
["1 1/2 c. sugar", "2 Tbsp. cocoa", "1 tsp. vanilla", "1 stick butter or margarine", "1/2 c. milk"]
["Mix and bring to a boil.", "Boil 2 minutes.", "Remove from heat and let stand for 10 minutes.", "This is important!", "Then beat until thick and spread on cooled cake.", "Makes enough for 3 layer cake."]
["sugar", "cocoa", "vanilla", "butter", "milk"]