Place the cereal in a large bowl. Set aside.

Place the chocolate chips and peanut butter in a microwave-safe bowl.

Microwave the chocolate and peanut butter in 30-second increments stirring each time until melted and smooth.

Pour the chocolate mixture over the cereal and use a spatula to gently toss the cereal in the chocolate until completely coated.

Place the powder sugar and cocoa powder inside a resealable gallon-sized food-safe plastic bag. Seal and shake.

Add the chocolate-coated cereal to the bag and seal and shake again until the cereal is coated in the cocoa/sugar mix.

Pour the cereal out evenly on a baking sheet lined with parchment paper.

Leave to cool and dry completely.

When the cereal has dried and cool, place in a large bowl with the M&M's and pretzels and stir to combine.