Fast Fudge Frosting - cooking recipe

Ingredients

1 lb. confectioners sugar
1/2 c. cocoa
1/4 tsp. salt
1/3 c. boiling water
1/3 c. soft butter
1 tsp. vanilla

Preparation

Add first 3 ingredients.
Add water, butter and vanilla.
Beat until creamy.
Frosts one 9 x 13-inch or two 8 or 9-inch cakes.