Place parchment paper in a 13x9 pan. Pre-heat the oven to 200 degrees Fahrenheit.
Over low heat in a small saucepan, add the brown sugar, corn syrup and butter. Stir together until the butter has melted.
Increase the heat to medium and allow to simmer for about 4 minutes.
Remove from heat and add the salt & vanilla extract. Stir together.
Mix together as you put the baking soda into the pan. Make sure that it is evenly spread.
Coat the popcorn with the caramel sauce; stirring together to evenly coat the popcorn.
Place the caramel popcorn into the pre-heated oven for about 15 minutes. Place the popcorn back into the oven, after stirring, to heat for another 15 minutes. Remove to stir, then place back into oven 15 minutes. Take out the oven, stir and allow to cool off. Break up any clumps.
Enjoy!
