That Skinny Chick Can Bake
Stuffed Peanut Butter Rice Krispie Treats | A classic cereal treat stuffed with peanut butter cups!

Stuffed Peanut Butter Rice Krispie Treats

Home ยป 300+ Best Cookies Recipes ยป 90+ Bar Cookies Recipes ยป Stuffed Peanut Butter Rice Krispie Treats

These Stuffed Peanut Butter Rice Krispie Treats are an amped-up version of the dessert I craved when I first went off to college. I was inspired by my mom’s version made with cooked Karo syrup and sugar instead of marshmallows.

I upped the ante by adding a layer of Reese’s Peanut Butter Cups. Making these Chocolate Peanut Butter Bars with peanut butter cups was a genius move, in my humble opinion!

Stuffed Peanut Butter Rice Krispie Treats on a small ruffled white plate

Stuffed Peanut Butter Rice Krispie Treats

I’ve said it before, but I cannot stomach a peanut butter sandwich. My youngest sister would eat peanut butter out of the jar with a spoon. I think all my kids would, too. Ick.

But put a pan of peanut butter Rice Krispie treats in front of me and I go weak in the knees. I’m not sure it was the minute amount of protein that made me long for these when I was in college or just their sheer deliciousness, but they were constantly on my mind. My collegiate diet consisted of a lot of popcorn and pizza—I’m certain there were a few nutritional deficiencies! These peanut butter cheesecake bars are another fabulous peanut butter treat!

When you’re thinking Back to School, these cereal bars came to mind. But I had to make them even MORE enticing by adding a layer of peanut butter cups! Stuffed Peanut Butter Rice Krispie Treats take this classic to another level!!

Stuffed Peanut Butter Rice Krispie Treats on a small white dish with a tray of bars in the background

A Few Tips for Making these Peanut Butter Rice Krispie Treats

  • This batch of Stuffed Peanut Butter Rice Krispie Treats filled an 8 x 8-inch pan to the brim. When making these again, I’d go for a slightly shorter version in a 9 x 9.
  • You must work quickly after you stir the sweetened peanut butter mixture into the Rice Krispies so it doesn’t start to harden.
  • PRO-Tip: Don’t compact the layers too much, either, just gently press. It’s OK if the top is a little uneven. Just call them rustic. Grease your hands so the mixture does not stick when you’re spreading them out in the pan.
  • I frosted these with a ganache made with butter, cream and chocolate, but my mom’s original recipe called for melted chocolate chips. Feel free to use that shortcut if you’d like. The topping will not be as glossy, though, with chocolate chips.
  • My mom’s version called for Special K, a cereal that looks like Corn Flakes. I think they’re even more irresistible with Rice Krispies! I know you’ll love these Chocolate Peanut Butter Bars!

More Back to School Recipes:

If you love caramel, these Caramel Stuffed Rice Krispie Treats will tickle your fancy. Oreo Rice Krispie Treats will provide that chocolate fix that is always welcomed by my children! My Caramel Rolo Rice Krispie Treats and Cookie Dough Rice Krispie Treats are also winners! If cookies are more your style, these Peanut Butter Filled Chocolate Cookies are darn tasty!

Stuffed Peanut Butter Rice Krispie Treats | A classic cereal treat stuffed with peanut butter cups!

Stuffed Peanut Butter Rice Krispie Treats

No bake peanut butter Rice Krispie Treats stuffed with Reese's Peanut Butter Cups

Prep Time 15 minutes
Cook Time 5 minutes
Total Time 20 minutes
Yield 16 bars


  • 6 cups Rice Krispies cereal
  • 1 cup sugar
  • 1 cup light corn syrup (I use Karo brand)
  • 1 cup creamy peanut butter
  • 1 teaspoon vanilla
  • 1 10-ounce bag of snack sized Reese's Peanut Butter Cups, frozen for about a half hour

Chocolate topping (double for full coverage):

  • 1/2 cup heavy cream
  • 2 tablespoons butter
  • 4 ounces semi-sweet chocolate, chopped
  • 2 tablespoons powdered sugar, sifted


  1. Line a 9 x 9-inch pan with non-stick foil, or foil sprayed with non-stick cooking spray
  2. Put cereal into a large bowl and set aside.
  3. In a saucepan, mix together the sugar and corn syrup. Cook until the sugar dissolves without allowing the mixture to boil. Remove from heat and mix in the peanut butter and vanilla.
  4. Pour peanut butter mixture over cereal and mix till combined.
  5. Gently pat half the cereal mixture into the pan. Top with frozen peanut butter cups.
  6. Place small amounts of cereal in spaces between peanut butter cups, then add the rest of the cereal mixture and press gently till top is even.
  7. Heat the butter and cream in microwave safe bowl, till butter melts. Add chopped chocolate and stir till melted. Stir in powdered sugar till smooth. Pour over cereal bars. May double topping if desired (if your top is uneven some Rice Krispies may peek through).

Nutrition Information:



Serving Size:

1 bar

Amount Per Serving: Calories: 411Total Fat: 20gSaturated Fat: 7gTrans Fat: 0gUnsaturated Fat: 11gCholesterol: 13mgSodium: 222mgCarbohydrates: 57gFiber: 2gSugar: 44gProtein: 7g


Please leave a comment on the blog or share a photo on Pinterest

Note: This post may contain affiliate links; view my Disclosure Policy for details. I earn a small percentage from any purchase you make by clicking on these links at no extra cost to you.

37 comments on “Stuffed Peanut Butter Rice Krispie Treats”

  1. Peanut butter.. Yummy!

  2. mmm..peanut butter!! My weakness and anything made peanut butter tastes BETTER!

  3. I haven’t made Krispy bars in 100 years! Sounds good:@)

  4. These will be a huge hit in my house great one Liz!

  5. Se ve un corte perfecto.
    Un saludito

  6. Yes, yes, yes please! They look utterly delicious!

  7. oh wow this looks so goood! thanks for sharing!


  8. That is an amped up classic, love the hidden surprise!!

  9. Liz, I love this rice krispies treats. I love rice krispie treats and adding peanut butter makes this rice krispies treats even better!

  10. Sometimes when I need something sweet and a little salty, I’ll mix a small handful of semi-sweet chocolate chips into a spoon of extra crunchy peanut butter so I’m going to have to agree with your sister and your children here, Liz. Peanut butter is the best in any form. I can’t wait to try your updated version of your mom’s special treats!

  11. OMG…I am drooling! Reese’s are my favorite candy…and to combine them with peanut butter-infused Rice Crispy treats? Swoon!!!

  12. These treats would be huge in my house too, Liz. I’ve not made the variety with cooked syrup, but intrigue has me planning a batch soon. Thank you for sharing this version!

  13. I love how thick these are. I could really sink my teeth into them. I don’t mind peanut butter. My mom eats it for lunch all the time, and sometimes it takes all my will power not to just stuff a giant spoonful in my mouth. However, I do prefer almond butter.

  14. Seriously Liz, that is just rice krispie treat heaven.

  15. These look yumm Lizzy! I loved!

  16. Is there anything better than a peanut butter and chocolate combo? You have proven that there is not anything better! What a great treat!

  17. Lizzy,
    I couldn’t eat peanut butter in a sandwich either. No PBJ, ever. I loved jelly sandwiches though. I should try rice krispie treats though. Everyone seems to love them. This version looks delicious.

  18. My hubby will go crazy over these peanut butter treats, Liz! xoxo

  19. Brrrrrilliant, Liz! I do marvel at how you don’t like PB out of the jar or in a sandwich. At any rate, how brilliant (and delicious) is your rice krispies treat =) (Bet your mommy is smiling at you from Heaven as she sees her amped up recipe bring smiles.)

  20. Peanut butter Rice Krispie treats?! Where do I order 4 dozen ๐Ÿ˜›

  21. Way to go, Liz! They’re great little treats that my family would love. Unique and PB good!

  22. How funny, I’ve never liked PB&J sandwiches either but PB cups are one of my favorite treats! ๐Ÿ˜‰ These bars are out of control yummy!!

  23. These look good enough to eat for breakfast.

  24. I am one of those people who has been guilty of eating peanut butter out of the jar on more than one occasion. These would seriously satisfy my peanut butter cravings!

  25. I can’t think of a nicer surprise to find inside my rice krispie square!

  26. Peanut butter and more goodies! Now that’s a treat!

  27. My husband and kiddos are huge PB & chocolate fans – they’d LOVE this!!

  28. I have GOT to make this!

  29. Oh stuffed rice krispies, what an ingenious (and delicious!) idea!

  30. I have to tell you the green beans before this post look wonderful but this caught my eye. Ooooh these sound heavenly and something I’m sure my husband would gobble up. Great recipe, I’ll be sure to try these.

  31. What’s wrong with a diet of pizza and popcorn!? ๐Ÿ˜›
    These rice krispie treats are seriously over the top! And in a good way.

  32. hahaha I’m so embarrassed! My stomach started growling at the office the second I looked at these! Thomas would have a fit over them!

  33. Hi Liz, I’m a huge fan of anything peanut butter, I can also eat it right out of the jar. Love these amped up rice krispie treats.

  34. I’ve never made Rice Kristine treats what is wrong with me? This is a perfect recipe to start with. Although I may have to swipe a spoonful of peanut buttet from the jar while I’m making them.

  35. It may sound silly to say I was excited by krispie treats, but when I saw these I just couldn’t wait to make them! They were an excellent way to use up some leftover Easter candy and they are beyond delicious. So good!

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.