Step 1: Pop the popcorn using your preferred method (air-popped, stovetop, or microwave). Make sure there are no unpopped kernels left in the bowl.

Step 2: Transfer the popcorn to a large baking sheet lined with parchment paper. Spread it out evenly to allow for easy coating.

Step 3: Melt the dark chocolate chips. In a microwave-safe bowl, combine dark chocolate chips and coconut oil. Microwave in 20-second intervals, stirring after each interval until the chocolate is fully melted and smooth.

Step 4: Drizzle the melted dark chocolate over the popcorn, ensuring even coverage. Use a spoon or fork to spread the chocolate if needed.

Step 5: Immediately sprinkle the crushed peppermint candies over the chocolate-drizzled popcorn while the chocolate is still wet. The crushed peppermint will adhere to the chocolate as it cools.

Step 6: If using, melt the white chocolate chips in the same way as the dark chocolate. Drizzle the white chocolate over the popcorn for an extra layer of sweetness.

Step 7: Add mini marshmallows and sprinkles on top for an extra festive touch. Lightly sprinkle sea salt if you prefer a sweet and salty combination.

Step 8: Allow the popcorn to set at room temperature for 20-30 minutes, or refrigerate for faster setting. Once the chocolate has hardened, break the popcorn into bite-sized clusters.