16cupspopped popcornabout 3 bags of microwave popcorn**
Instructions
Preheat oven to 250°F. Line two large roasting pans (or baking sheets) with parchment paper. Set aside.
In a small saucepan, melt butter. Stir in brown sugar, corn syrup and salt. Bring to a boil and stir constantly. Boil for one minute, then remove from heat.
Add in baking soda and vanilla. Stir until foamy.
Gradually pour over popped corn. Mix well.
Pour into prepared pans. Place one pan on top rack (middle of oven) and one on bottom rack.
Bake for one hour, stirring every 15 minutes (and rotating in the oven). Remove after an hour and allow to cool. Store in airtight containers or ziploc bags. ENJOY.