1/3 c. butter
2/3 c. brown sugar
1/3 c. corn syrup
1/4 tsp. baking soda
1/2 tsp. vanilla
1 pop & serve bag of microwave popcorn (3.5 oz.)

In shallow baking dish, microwave butter on high until melted. Stir in brown sugar and corn syrup. Microwave on high until mixture boils, about 3 minutes stirring once. Microwave on high 3-4 minutes without stirring. Stir in soda, vanilla and popped corn. Microwave on 75% power for 6 minutes. Stir to coat popcorn evenly, cool. Break apart. Store in covered container.