1/3 c. soft butter
1/8 tsp. salt
3 c. confectioners sugar (sift if lumpy)
4 eggs
3 (1 oz. each) sq. unsweetened chocolate
1/4 c. water

Beat butter, salt, and 1 cup confectioners sugar until light and fluffy. Blend in melted chocolate. Then add rest of sugar alternately with milk and vanilla. Mix until smooth and creamy. Add more sugar to thicken or milk to thin frosting if needed for good spreading consistency.