Seafoam Frosting
["2 unbeaten egg whites", "1 1/2 c. packed brown sugar", "dash of salt", "1/3 c. water", "1 tsp. vanilla"]
["Mix egg whites, brown sugar, salt and water in double boiler; beat over boiling water for 7 minutes.", "Remove from heat and add vanilla.", "Beat 1 more minute.", "Frost cake immediately."]
["egg whites", "brown sugar", "salt", "water", "vanilla"]