Line a large baking sheet with parchment and set aside.
Melt the white candy coating in a microwave-safe bowl in 30-second bursts, stirring after each. Stir in oil if needed until smooth.
Add the puffed corn to a very large bowl.
Pour the melted coating over the puffcorn and gently toss with a spatula until evenly covered.
Spread the coated puffcorn onto the prepared sheet in an even layer.
While still tacky, sprinkle on mini candies, crushed peppermint, sprinkles, and a light shower of sea salt.
Let set at room temperature until firm, about 15 minutes, then break into clusters and serve.
Notes
Variation: Swap the peppermint for chopped dried cranberries and a pinch of orange zest. Storage: Keep in an airtight container at room temperature for up to 5 days; for crisper texture, store with a small packet of dry rice or a paper towel to absorb moisture.This recipe is an original creation inspired by classic Easy Puffcorn Christmas Treats flavors. All ingredient ratios and instructions are independently developed.