Separate your chex into 2 large bowls. Three cups in each.
Combine cake mix and powdered sugar in a medium sized bowl.
In a small microwave safe bowl, microwave red candy melts at 50% power in 1 minute increments (or following package directions) until you can stir them smooth.
Pour red candy over one of the bowls of chex mix and stir to coat the cereal the best you can.
Add the coated cereal to a gallon sized ziplock bag, and scoop in 3/4 cup of the cake mix mixture.
Shake till cereal is coated in mixture. Pour out onto parchment paper.
In a small microwave safe bowl, microwave white candy melts at 50% power in 1 minute increments (or following package directions) until you can stir them smooth.
Pour white candy over one of the bowls of chex mix and stir to coat the cereal the best you can.
Add the candy coated cereal to a gallon sized ziplock bag, and scoop in 3/4 cup of the cake mix mixture.
Shake till cereal is coated in mixture. Pour out onto parchment paper.
Add red chex mix, white chex mix, m&ms and sprinkles to a large bowl and mix together.
Serve immediately, or store in an airtight container for up to 2 days.