01 -
Pop popcorn, remove unpopped kernels, place in bowl.
02 -
Combine butter, brown sugar, corn syrup in saucepan over medium heat.
03 -
Stir until melted and combined.
04 -
Add marshmallows and vanilla, stir until marshmallows melt.
05 -
Pour over popcorn.
06 -
Mix until evenly coated.
07 -
Spread on baking sheet to set.