3 qt. popcorn, popped
1 c. brown sugar
1/2 c. butter
1/2 c. Karo light corn syrup
1/2 tsp. vanilla
1/2 tsp. baking soda

Place popped corn in a large roasting pan. In heavy 1-1/2 qt. sauce pan stir sugar, butter, and corn syrup together. Stirring constantly, bring to a boil over medium heat. Without stirring, boil 5 minutes. Remove from heat, stir in vanilla and soda. Pour over corn stirring to coat well.

Bake at 250 for 1 hour stirring every 15 minutes.