1. Combine sugar, water, egg whites, corn syrup and salt in top of double boiler; beat mixture until well blended.
2. Place over simmering water; cook, beating constantly, at high speed with an...
Combine all ingredients except vanilla in top of double boiler.
Beat 1 minute with electric mixer or rotary beater.
Place over boiling water; beat constantly until frosting forms peaks, about 7...