Step 1

Melt brown sugar, corn syrup, butter, and salt in microwave for 3 minutes, stirring in one minute intervals.

Step 2

Add vanilla and baking soda to brown sugar mixture. Mix well.

Step 3

Put popped popcorn into a brown grocery bag. Pour brown sugar mixture over the popcorn. Shake bag.

Step 4

Put grocery bag in microwave. Microwave for 3 minutes. After each minute take bag out and shake. After three minutes microwave for 1 minute and 30 seconds. Shaking after each 30 second interval. Pour onto wax paper and let cool.