White Mountain Frosting - cooking recipe

Ingredients

2/3 c. sugar
2 2/3 Tbsp. water
1/3 c. light corn syrup
3 egg whites
1 1/2 tsp. vanilla

Preparation

Mix in saucepan and keep covered first 3 minutes, then cook to 242\u00b0 on thermometer.
Beat 1/3 cup or 3 egg whites until stiff, while syrup is cooking.
Pour syrup slowly over whites and add 1 1/2 teaspoons vanilla.