01 -
Add popped popcorn to a large mixing bowl, ensuring all unpopped kernels are removed.
02 -
In a saucepan over medium heat, combine butter, brown sugar, and corn syrup. Stir continuously until mixture is completely melted and well combined.
03 -
Incorporate marshmallows and vanilla extract into the saucepan, stirring constantly until marshmallows are fully melted and integrated.
04 -
Remove saucepan from heat and pour mixture over the prepared popcorn. Gently fold with a rubber spatula until popcorn is evenly coated.
05 -
Transfer the marshmallow caramel popcorn to a baking sheet to set before serving.