Boiled Frosting

Directions

1. 1
   Combine sugar, water, syrup and salt in saucepan.
2. 2
   Stir.
3. 3
   Boil slowly without stirring until mixture will spin a long thread when a little is dropped from spoon; hold spoon high above saucepan (238° to 242°).
4. 4
   In mixing bowl, beat whites until stiff, about 2 1/2 minutes.
5. 5
   Pour hot syrup slowly over egg whites while beating. Continue beating until mixture is fluffy and will hold its shape. Add vanilla.
6. 6
   Blend.
7. 7
   Spread on cake.