Delicious Chocolate Icing - cooking recipe

Ingredients

1 c. confectioners sugar (do not sift)
1 lump butter (size of an egg)
2 or 3 sq. melted unsweetened chocolate
1/4 c. evaporated milk
1 egg
1/2 tsp. vanilla

Preparation

Place bowl in dish of ice and beat ingredients together with beater until stiff and creamy.