01 -
In a big bowl, toss together the Cheerios, M&M's, pretzels, and Chex.
02 -
Heat the white chocolate in the microwave 30 seconds at a time, stirring well between rounds, until it's melted. Be careful not to burn it.
03 -
Drizzle the melted chocolate on the mix and keep stirring until it's evenly covered.
04 -
Lay the mixture out on parchment or wax paper and let it sit for at least 15 minutes until it firms up.