Pour 8 cups of cinnamon chex cereal into a large bowl.
Melt chocolate chips, softened butter, & peanut butter in a microwave safe bowl for 30-60 seconds. Stire until well blended.
Add 2 tsp pumpkin pie spice to cereal.
Pour melted chocolate and butter onto cereal, mix well.
Add 2 cups powdered sugar to a gallon zipper bag.
Add cereal to zipper bag, close and toss for several minutes.
Open bag, add a bit more powdered sugar, close and toss for a few minutes more.
Serve & enjoy!