In a microwave safe bowl, melt chocolate chips and peanut butter in 30 second intervals, mixing in between every 30 seconds until everything is smooth and melted.
Add the rice krispy cereal to a large mixing bowl, pour melted chocolate and peanut butter all over cereal, and mix until well and evenly coated.
On a lined baking sheet, drop heaping spoonfuls of mixture. I used a cookie/ice cream scoop so the clusters stayed together.
Chill in the fridge for 30 minutes to set up.
When clusters are hard and set up, place in a large ziplock freezer bag, and add powdered sugar.
Shake bag to coat clusters evenly with powdered sugar.
Keep chilled until ready to serve.
Enjoy!
