01 -
Measure 9 cups Chex cereal and transfer to a very large mixing bowl. Set aside.
02 -
In a medium saucepan over medium heat, melt chocolate chips, peanut butter, and butter, stirring constantly until completely smooth.
03 -
Remove saucepan from heat and stir in vanilla extract. Let mixture cool for 2-3 minutes.
04 -
Pour chocolate mixture over Chex cereal in three stages, folding gently after each addition to avoid breaking the pieces.
05 -
Add powdered sugar and festive sanding sugar to a large airtight plastic bag. Seal and shake to combine evenly.
06 -
Transfer coated cereal into the sugar mixture in batches, sealing and gently tossing to coat. Remove and place coated cereal onto a wax paper-lined rimmed baking sheet.
07 -
Spread cereal pieces in a single layer and refrigerate for one hour to set.
08 -
Once set, store in room temperature or chilled as preferred.