Popcorn Balls

Directions

1. 1
   Measure popped 3-minute popcorn into buttered bowl (4-quart or larger).
2. 2
   Combine together in heavy 1 1/2-quart saucepan the sugar, water, corn syrup, salt and vinegar.
3. 3
   Stir over heat until sugar is dissolved.
4. 4
   Cover; bring to a boil and let boil briskly for 3 minutes.
5. 5
   Uncover; insert candy thermometer and cook mixture to hard ball stage (260°).
6. 6
   Remove from heat.
7. 7
   Stir in vanilla.
8. 8
   Pour slowly over popped corn, stirring with large, buttered spoon to coat each kernel.
9. 9
   Immediately form into balls.