Add the brown sugar mixture to the cereal and pretzels, and stir to coat evenly.
Spread the cereal mixture evenly onto the prepared baking sheets.
Bake for 45 minutes, stirring every 15 minutes.
Allow the cereal mixture to cool completely.
Once cooled, add the candy.
16.2 ounces Autumn Mix Candy, 10 ½ ounces Reese's Pieces, 1 cup M&M's candy
Stir to combine.
Notes
The calories listed are an approximation based on the ingredients in the recipe card and a serving size of ½ cup of snack mix. Actual calories will vary.