1 1/2 c. sugar
1/4 tsp. cream of tartar
1/4 tsp. salt
1/3 c. water
2 tsp. light corn syrup
2 egg whites
1 tsp. vanilla

In top of double boiler, combine all ingredients except vanilla. Place over rapidly boiling water (water should not touch bottom of pan), beating on high speed until mixture stands in peaks, about 7 minutes (don't over cook). Remove from heat; add vanilla. Continue beating until frosting holds deep swirls, about 2 minutes. Frosts 13 x 9 inch cake or 2 layer cake. For chocolate revel frosting, add 1/3 cup semi-sweet chocolate chips to finished frosting. Let stand 1-2 minutes. Chocolate will swirl through frosting when spread on cake.