Caramel Apples

6 Sticks
1 Cup Sugar
1 Can Sweetened Condensed Milk
1/4 C butter or margarine
6 apples
3/4 C White Karo
1/8 t salt
1 tsp vanilla
chopped nuts - optional

Combine sugar, karo, sweetened condensed milk and salt. Cook over medium heat until 230 degrees or soft ball. Remove and cool slightly. Stir in butter and vanilla. Dip apples into nuts, and place on wax paper.