Ingredients

6 large egg whites 

1 1/2 cups sugar 

1 teaspoon pure vanilla extract 

Preparation

Place whites and sugar in a heatproof mixer bowl set over a pan of simmering water. Whisk until sugar dissolves and mixture registers 160 degrees on a candy thermometer. Remove from heat, and whisk on high speed until mixture is cool and stiff peaks form, about 6 minutes. Beat in vanilla. Use immediately.