2/3 cup butter or margarine
1/2 cup milk
1 pound powdered sugar
1 cup firmly packed dark brown sugar
1 tsp vanilla
Melt butter in saucepan. Add brown sugar and milk and heat to boiling, stirring constantly. Boil gently 5 minutes. Cool 10 minutes. Blend in powdered sugar, beating until smooth. Add vanilla. Beat until spreading consistency.
Frosting for two 9″ layers
Recipe by Virginia Gioiello