White Cooked Frosting

Directions

1. 1
   Combine sugar, egg white, Karo syrup, water and salt in top of double boiler (not overheat).
2. 2
   Beat 1 minute with electric or rotary type beater to blend.
3. 3
   Place over boiling water and cook, beating constantly, until frosting forms stiff peaks, about 8 minutes (don't overcook).
4. 4
   Add the marshmallows during the cooking process after the mixture is hot.
5. 5
   Remove pot from boiling water; pour into mixing bowl.
6. 6
   Add vanilla; beat until frosting is of spreading consistency, about 2 minutes.
7. 7
   Will frost tops and sides of 2 (8 or 9-inch) layers or 1 (10-inch) tube cake.
8. 8
   Allow frosting to air dry on cake before covering.