Kahlua Caramel Popcorn

Directions

1. 1
   In a shallow pan, keep popped corn warm in low oven.
2. 2
   Bring sugar, Kahlua and vinegar to a boil, stirring until sugar dissolves.
3. 3
   Add butter.
4. 4
   Insert candy thermometer and cook to hard crack stage (300°).
5. 5
   Pour over warmed, popped corn and stir to coat evenly.
6. 6
   Add nuts.
7. 7
   Cool and store in airtight container in cool place.