1 c. brown sugar
1/4 c. light corn syrup
1 stick butter
1/2 tsp. salt (optional)
1/2 tsp. baking soda
1 tsp. vanilla
16 c. popped popcorn

Put popped popcorn in large brown paper bag. Set aside.

In large glass bowl, add brown sguar, butter, syrup and salt. Microwave on high 1-2 minutes (until it starts to bubble). Stir well. Cook 3 more minutes, stirring after each minute. Add soda and vanilla stirring until foamy.

Pour over popcorn in bag. Close up bag and shake well. Microwave bag for 3 minutes, shaking after each minute. Open bag to let popcorn cool. Pour into bowl and enjoy.