Melt 5 squares unsweetened or semi sweet chocolate; sit aside to cool. Beat 3/4 c. butter or marg. until soft; blend in 3 cups confectioners sugar. Add 1 egg and 1 tsp. vanilla. Add 3 additional cups confectioners sugar alternately with 3 tbsp. milk until of spreading consistency. Add step 1 and step 2 ingredients along with 2 tbsp. milk for smooth consistency.