Begin by popping the popcorn. If using kernels, pop them in an air popper or on the stovetop. Measure out about 12 cups of popped popcorn and place it in a large mixing bowl.
Line a baking sheet with parchment paper to ensure the popcorn doesn’t stick.
In a microwave-safe bowl, melt the green candy melts in 30-second intervals, stirring after each interval until completely smooth.
Pour the melted green candy over the popcorn in the large mixing bowl. Use a baking spatula or spoon to gently toss the popcorn until evenly coated.
Sprinkle the mini marshmallows, green sprinkles, and salt over the coated popcorn. Toss again to distribute the toppings evenly.
Spread the popcorn mixture onto the prepared baking sheet in an even layer. Allow it to cool for a few minutes to let the candy harden.
Once cooled, break the popcorn into pieces and serve in individual dishes or store in an airtight container for later.
Feel free to customize the toppings by adding crushed pretzels or nuts for additional flavor and texture.
To make it even more festive, consider adding some red candy or chocolate pieces for a classic Grinch look.
This popcorn treat can be stored in an airtight container at room temperature for up to one week.