1 (1 lb.) pkg. powdered sugar sifted (4 3/4 c.)
1/2 c. cocoa, regular type, dry
1/4 tsp. salt
1/3 c. boiling water
1/3 c. butter, softened
1 tsp. vanilla

Combine sugar, cocoa and salt. Add water and butter; blend. Add vanilla. Frosts tops and sides of two (2) 8 or 9 inch layers.