Whiskey Sour Popcorn Balls

2 quarts popped popcorn
1/2 cup dry whiskey sour mix (2 packets of individual drink mix)
1/2 cup granulated sugar
1/4 teaspoon salt
1/4 cup light corn syrup
1/2 cup water
1/2 teaspoon vinegar

Heat oven to 250 degrees F.

Place popcorn in a large 4-inch deep buttered baking pan. Keep warm in oven.

Combine remaining ingredients in a large saucepan. Cook until mixture reaches 250 degrees F on a candy thermometer. Remove popcorn from oven. Pour syrup mixture over popcorn. Mix well and shape into balls.