-
Beat egg whites and cream of tartar together until light and frothy.
-
With mixer running slowly, add 2 Tbls sugar, beating until soft peaks form.
-
In a small saucepan, combine 1/3 cup water, corn syrup and remaining 2/3 c of sugar.
-
Cook over medium heat until boiling.
-
Cook, stirring, until mixture reaches the firm ball stage (between 242 F and 248 F), about 6 minutes.
-
Immediately remove from heat.
-
With mixer on low, slowly add hot syrup to egg white mixture.
-
Increase mixture speed to high and continue beating for 5 minutes.
-
Add vanilla and continue to beat until mixture looks like marshmallow cream, about 1 minute more.
-
Store in glass jar with air-tight lid on countertop.