Pop popcorn and let it cool. Remove any unpopped kernels and place 8 cups of popcorn into a large bowl. (The bigger the bowl, the easier to mix!)
In a separate large, microwave-safe bowl, combine peanut butter, chocolate chips, butter, and salt. Microwave in 15-second bursts, stirring well between each, until the mixture is fully melted and smooth.
Pour the melted mixture over the popcorn and gently stir to coat evenly, taking care not to crush it. Ensure all popcorn is evenly and well-coated.
Transfer half the coated popcorn to a 1 or 2-gallon-sized resealable bag, add half the powdered sugar, seal, and shake until coated. Repeat with the remaining popcorn and powdered sugar, shaking until all popcorn is well coated.
Pop the coated popcorn in the freezer—I love eating it straight from the freezer for extra crispness! At room temperature, the popcorn will be softer.
Video
Notes
Note 1: Use plain or lightly salted popcorn. If the popcorn is salted, skip adding extra salt.Storage: Put the coated popcorn in a sealed container or freezer bag. Store in the freezer for up to 3 months. Enjoy it cold, straight from the freezer for optimal texture!