Double Boiler Frosting - cooking recipe

Ingredients

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

Preparation

Mix all ingredients except vanilla in top of double boiler. Place over boiling water; beat with beaters until stiff peaks form. Scrape sides and bottom of pan occasionally. Fold in vanilla.