1/2 c. brown sugar
1/2 c. white sugar
1/2 c. corn syrup
5 tbsp. butter
1 tsp. vanilla
1 c. chunky peanut butter
5 qt. popped popcorn

Bring to boil first 4 ingredients. Boil 1 minute. Remove from heat, stir in vanilla and peanut butter. Pour over popcorn; mix until popcorn is well coated.