01 -
Prepare stovetop popcorn and divide between two large bowls.
02 -
Preheat oven to 250°F and spray two 9x13 pans.
03 -
Melt butter, brown sugar, and corn syrup together until boiling.
04 -
Boil mixture for 3 minutes, stirring constantly.
05 -
Remove from heat and stir in baking soda and vanilla.
06 -
Divide caramel and color one portion red, one green.
07 -
Quickly pour colored caramel over separate bowls of popcorn.
08 -
Transfer to prepared pans and bake 45 minutes.
09 -
Stir every 15 minutes while baking.
10 -
Cool completely before serving or packaging.