The recipe is
1 cup butter
2 cups packed brown sugar
1 tsp salt
1/2 cup light corn syrup
1 tsp baking soda
8 cups of popped popcorn (2 microwave bags or air popped popcorn)
Preheat the oven to 200 degrees. Put popcorn in a greased 13"x9" pan and put it in the oven.
In a heavy bottom sauce pan mix butter, sugar, salt, and corn syup.
Over medium heat, bring to a boil. Boil at a rolling boil for 5 minutes.