Line a large sheet pan with parchment paper and set aside.
In a large bowl, combine corn Chex, pretzels, Lucky Charms, Lucky Charms marshmallows, and 1/2 cup green M&M’s.
In a microwave-safe bowl, add the white chocolate chips and vegetable oil. Microwave for 30 seconds, stir, and microwave for another 25 seconds. Stir until melted and smooth. If necessary, return to the microwave a little longer. (Use bursts of 10 seconds, stirring for 10 seconds between each burst). Pour the melted and smooth white chocolate over the snack mix.
Gently stir until completely combined, then transfer to the prepared sheet pan and spread into an even layer. Add remaining 1/4 cup M&M’s on top.
Allow to harden at room temperature or place in the fridge until firm, about 10–20 minutes. Break into pieces and serve or fill plastic bags and attach the free printable.
Video
Notes
Storage: Store in an airtight container at room temperature for up to a week. For longer freshness, keep it in the fridge. If you want to save it for later, freeze in a sealed bag or container for up to two months.