Preheat oven to 250. Place popcorn in a large 4 inch deep butttred baking pan. keep warm in oven. Combine sugar, water, cornsyrup, vinegar, and salt in a large saucepan. COok until mixture reaches 250 on a candy thermometer. Remove from heat and quickly stir in vanilla. Remove popcorn from oven. Pour syrup mixture over popcorn, stirring to mix well. Shape 1 cup of popcorn around each candy stick to form a