Fudge Chocolate Frosting - cooking recipe

Ingredients

1 c. sugar
3 Tbsp. cocoa
3 Tbsp. margarine
1/3 c. milk
1 tsp. vanilla (add last)

Preparation

Put all ingredients into heavy saucepan; cook, stirring, on medium heat until mixture begins to boil; boil 5 minutes, then remove from heat.
Cool.
Beat until thick enough to spread on cake layers.
Add vanilla.
Use one recipe for each cake layer to be iced.