Peanut Butter Cup Rice Krispie Treats

  • Author: Our Best Bites


Gooey peanut butter marshmallow is dumped over chocolate rice krispie cereal and studded with mini peanut butter cups. Hello. Doesn’t get better than this.



  • 4 tablespoons butter
  • 9 cups mini marshmallows, divided
  • 1/4 cup peanut butter
  • 5 cups cocoa krispies cereal *see note
  • 1 cup mini Reeses peanut butter cups (or chopped full size ones)


  1. Line an 8×8 pan with a sling of parchment paper (or line with foil) and lightly rub sides of pan with butter.
  2. Set aside 1 cup of marshmallows. In a large heavy-bottomed pot, melt butter. Add peanut butter and then the remaining 8 cups of marshmallows. Stir often until melted and smooth.
  3. While marshmallows are melting, in a large bowl combine cereal, peanut butter cups, and remaining 1 cup marshmallows.
  4. When marshmallow mixture is melted and smooth, pour over cereal mixture and stir to combine well.
  5. Transfer mix to prepared pan and let rest until set.


  • These are very gooey and marshmallow-y because that’s the ratio I like them at 🙂 You can add up to 6 cups of rice krispie cereal if you so desire. Play it by ear while you’re mixing and feel free to adjust to taste.