01 - Line a large baking sheet with parchment paper or a silicone baking mat and set aside.
02 - In a large mixing bowl, combine Rice Chex cereal, mini pretzels, and popped popcorn.
03 - Pour the melted white chocolate over the cereal mixture. Gently toss until all ingredients are evenly coated.
04 - Add mini marshmallows, green chocolate candies, and white chocolate chips to the bowl. Toss gently to distribute evenly.
05 - Spread the mixture in an even layer on the prepared baking sheet.
06 - Immediately sprinkle the rainbow sprinkles over the top before the chocolate begins to set.
07 - Allow the mix to sit at room temperature for 20 to 30 minutes until the chocolate hardens completely.
08 - Break into clusters and serve immediately, or store in an airtight container for up to 5 days.