01 - In a large mixing bowl, combine the rice Chex cereal, oat ring cereal, mini pretzel twists, chocolate candies, and mini marshmallows. Toss gently to distribute evenly.
02 - Place the white chocolate chips and unsalted butter in a microwave-safe bowl. Microwave in 30-second intervals, stirring between each interval, until the mixture is completely melted and smooth.
03 - Pour the melted white chocolate mixture over the dry ingredients. Using a spatula, gently fold everything together until all pieces are evenly coated.
04 - Spread the coated mixture onto a parchment-lined baking sheet in an even layer. Allow it to rest for approximately 10 minutes until the chocolate coating has fully hardened.
05 - Once the chocolate is set, break the mixture into bite-sized pieces. Transfer to an airtight container for storage.