Yield: about 32 clusters
- 8 cups popped popcorn
- 4 whole graham crackers, finely chopped, divided
- 1 jar (7 1/2 ounces) marshmallow creme
- 1/4 cup butter or margarine
- 2 tablespoons grated lime peel
- 1 tablespoon key lime juice
- Line 9-inch square pan with foil.
- In large bowl, combine popcorn and all but 2 tablespoons graham cracker pieces.
- In large glass bowl, microwave marshmallow creme and butter on high 1 minute. Stir until butter is melted. Stir in lime peel and lime juice.
- Pour marshmallow mixture over popcorn, mixing thoroughly.
- Using damp hand, firmly press mixture into prepared pan. Sprinkle with reserved graham cracker pieces. Refrigerate 2 hours until firm.
- Lift foil from pan. Break popcorn mixture into clusters.