Combine first 4 ingredients in top of a large double boiler; add cold water, and beat on low speed of electric mixer just until blended.
Place over boiling water; beat constantly on high speed about 3 minutes or until soft peaks form. Remove from heat, and place over cold water. Add vanilla; beat 3 additional minutes or until frosting is thick enough to spread.
Note: The flavor of Snowball Cakes will be enhanced if freshly grated coconut is substituted for flaked coconut.
Oxmoor House Homestyle Recipes