Grandpa'S Popcorn Balls - cooking recipe

Ingredients

18 c. popcorn
1 1/2 Tbsp. white vinegar
3 tsp. vanilla
24 oz. light corn syrup
1 1/2 tsp. salt

Preparation

Pick over popped corn, discarding all hard kernels.
Combine corn syrup, vinegar and salt, cooking slowly over medium heat until a candy thermometer reaches 270\u00b0 or until a small quantity of the mixture dropped in cold water forms a hard ball.
Remove from heat; add vanilla extract.
Pour over popped corn, stirring constantly. Grease hands and shape lightly and quickly into balls.
Wrap in waxed paper.