Cocoa Fluff Frosting - cooking recipe

Ingredients

4 c. (1 lb.) powdered sugar
1/2 c. cocoa
1/4 tsp. salt
1 unbeaten egg, plus 1/3 c. water
1 tsp. pure vanilla
1/3 c. (2/3 stick) butter

Preparation

Combine sugar, cocoa, and salt.
Add remaining ingredients and beat for 2 to 3 minutes.