In a large pot, heat 1 tablespoon of vegetable oil over medium heat. Add the popcorn kernels, cover the pot, and shake gently until you hear the popping slow down to about 2 seconds between pops. Remove from heat. (Alternatively, use an air popper for a healthier version.)
In a microwave-safe bowl, combine the white chocolate chips and peppermint extract. Microwave in 30-second intervals, stirring after each interval until completely melted and smooth.
In a large mixing bowl, add the popped popcorn. Pour the melted white chocolate over the popcorn, and gently toss until all the popcorn is evenly coated.
Sprinkle the crushed candy canes and sea salt over the chocolate-coated popcorn and give it a gentle toss to ensure even distribution.
Spread the popcorn mixture out in a single layer on a parchment-lined baking sheet. Allow it to cool completely at room temperature for about 30 minutes to set the chocolate.
Once the popcorn is set, break it into clusters and serve in festive bowls or gift bags for a delightful treat!
Notes
For a healthier version, use an air popper instead of oil.