2 unbeaten egg whites
1 1/2 c. sugar
3 tbsp. light corn syrup
4 tbsp. water
1/4 tsp. cream of tarter
1/8 tsp. salt
1 tsp. vanilla
1 c. marshmallows (cut in quarters)

Combine all ingredients except vanilla and marshmallows in top of double boiler set over rapidly boiling water. Beat constantly with electric mixer until mixture will hold a peak (7 minutes). Remove from hot water, add vanilla and marshmallows. Beat until cool and thick enough to spread. I used this on a white cake (adding about 3/4 cups of chopped mint-chocolate chops to the batter). Yield: frosting for 9 x 13 x 2 cake. Refrigerate left-overs in warm weather.