Marshmallow Frosting 

1 1/2 cups sugar
1/3 cup water
2 egg whites
1/4 tsp. salt
1 tsp. light corn syrup
1/2 cup marshmallow creme
1 tsp. vanilla 

In top of double boiler, mix sugar, water, egg whites, corn syrup and salt. With mixer at high speed, beat over simmering water about 7 minutes or until mixture stands in stiff, glossy peaks. Transfer to large bowl. Add marshmallow creme and vanilla, beating until smooth.