7 Minute Icing
["2 egg whites, beaten", "1 1/2 c. sugar", "1/2 c. cold water", "1/2 tsp. tartar", "1/2 tsp. vanilla"]
["Combine all ingredients but vanilla in top of double boiler. Cook over boiling water, beating constantly, for 7 minutes, until icing stands in stiff peak.", "Remove from heat and beat in vanilla."]
["egg whites", "sugar", "cold water", "tartar", "vanilla"]