Peanut Butter Cup S’moreo Bars


Peanut Butter Cup S’moreo Bars (I think that’s about 4 separate desserts combined)

Peanut Butter Cup S'moreo Bars

What is a s’moreo? Well it’s just a s’more made with oreos instead of graham crackers.

But then I transformed into a cookie bar, and layered with peanut butter and chopped peanut butter cups too.

5 layers of pure enjoyment: crushed oreo base, peanut butter, milk chocolate, toasted marshmallows, chopped peanut butter cups.

Minimal skill, time and ingredients required = maximal enjoyment.

Fair warning though – you might want to tell people that the bars contain oreos….that dark base can be extremely misleading (i.e. I think everyone thinks they’re majorly burnt when they see them)



– To crush the oreos either:

– blend in a food processor or blender, until you get a ‘sandy’ texture

– Place in a zip-lock / freezer bag and bash/roll over with a rolling pin (or  your fists of hungry-rage!)  until most of it is quite ‘sandy’ in texture.

– If you cba to put the pb cups on top (I only did it for the visuals), just scatter them on at the same as the chocolate chips

– You can, of course, use more / less peanut butter, chocolate, marshmallows or peanut butter cups.

– You can sub the chopped peanut butter cups for chopped snickers bars or those super awesome mini pb cups

– To make these vegan friendly use: coconut oil instead of butter, dairy free milk (like soy/almond), vegan marshmallows, vegan chocolate chips and omit pb cups (or use vegan, if you can find/make them)

Peanut Butter Cup S’moreo Bars

A crunchy oreo base topped with peanut butter, chocolate chips and toasted marshmallows, then sprinkled with chopped peanut butter cups! A very quick dessert to pull together with minimal effort.
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Course: Bars and Brownies
Cuisine: American
Keywords: chocolate, marshmallow, oreo, peanut butter
Prep Time: 15 minutes
Cook Time: 7 minutes
Servings: 16 squares


For the oreo base:

  • 24 oreos crushed
  • 2 tbsp butter / coconut oil melted
  • 2 tbsp milk (any kind)

For the toppings:

  • 1/2 cup (8 tbsp) peanut butter warmed
  • 1/2 cup (90g) milk / semisweet chocolate chips or chopped chocolate
  • 24 large marshmallows (or vegan marshmallows) halved (or ~2 cups mini marshmallows)
  • 6 peanut butter cups chopped (see notes)


  • Preheat your oven to 180°C fan (350°F fan). Line a 20 or 23 cm (8 or 9-inch) square tin with foil or baking paper. Spray with oil (or use a pastry brush to brush the oil on). Set aside.

To make the base:

  • Combine the crushed (see notes) oreos with the melted butter and milk.
    24 oreos, 2 tbsp butter / coconut oil, 2 tbsp milk
  • Scatter the mixture evenly into the lined pan and press down. Bake for 6 minutes.

Add toppings:

  • Once baked, immediately spread the warmed peanut butter over the oreo base. Evenly scatter the chocolate chips over the peanut butter. Completely cover with the halved marshmallows (or mini marshmallows), placing them cut side down.
    1/2 cup (8 tbsp) peanut butter, 1/2 cup (90g) milk / semisweet chocolate chips or chopped chocolate, 24 large marshmallows (or vegan marshmallows)
  • Place under a broiler (oven grill) for under 1 minute to toast the marshmallows (watch them closely!) – mine took around 30 seconds.
  • Remove from the oven and immediately scatter the chopped peanut butter cups over the marshmallow layer.
    6 peanut butter cups
  • Allow to cool a bit then cut into 16 bars.
Tried this recipe?Let me know how it went! Mention @izyhossack or tag #topwithcinnamon!

83 thoughts on “Peanut Butter Cup S’moreo Bars”

  1. These are absolutely amazing!! They are like my 3 fave desserts in one! What a great idea, I am definitely going to be recreating these! p.s I love your gif…and your styling, awesome pics!

  2. OH MY GOD! Those American goodies I sent you were definitely put to good use! I am in the middle of exams now, but I also have a box of oreos in the pantry calling my name. I think these should be coming out of the oven soon 😉

  3. HOLY. COW.
    These are awesome. I’m IN LOVE with that first .gif, and with the whole burnt marshmallow topping in general. And honestly, I’m not usually about the whole “stuff a bunch of cookies and candies into a dessert”, but this, I’m all ab0ut. I love your posts, they’re always so much fun to read!
    Good luck with exams, if they aren’t over yet. UGH!

    • hank you, thank you, thank youuu! Ahh I am too, that’s why I put it riiighht at the top of the post :))
      I am becoming waaaay too into toasted marshmallows :/

  4. You certainly mean business with these ones! When I was in college, I probably would have made something like this for a reward for finishing, but during is good too…

    Love the .gif’s!

  5. When I saw you post this heavenly creation on IG, my heart (and my tummy) swooned. This is just what I want, right now.

    • Haha most people keep telling me to stop posting pictures of food everywhere because it makes them want to cry :’) Thank you!

  6. SWEET JEEZUM….the levels of crazy awesomeness going on here! These look….I don’t know what phrase would suffice. Stupid good. Stupid amazeballs good. The gooey-ness and the toasty marshmallow and the brownie bottom. I see them. I can almost taste them. I’m going to go eat ice cream straight from the container now, because that’s all my parents have in the house. (:

    • I think that you summarized them perfectly :’) Stupid amazeballs good is how I will now describe them haha.
      Eating ice cream from the container > eating ice cream from a bowl, and everyone knows it 🙂

  7. Let’s talk exam drive….I have an entire jar of homemade cookie butter peanut butter sitting on my shelf, plus granola made from said CBPB, plus homemade kale chips and tzatziki and carrot PB puree and goodness knows what else. And no posts because I seriously keep eating the stuff *as I’m on my way to get my camera.* As if my stomach couldn’t wait for another 5 minutes…and it can’t. Geebus, I need these bars! We’re all for camaraderie and care packages, right? 😀

    • Holy moly, that sounds amazing – Cookie butter peanut butter granola!? – I want.
      HAHA, YES. I always have to hit my own hand away from the food to stop me from eating it all before photographing it! Of course, of course, though these would die a painful, crushing death in a package me thinks :/

  8. Oh my lord.
    I have just found your blog.
    And just fell head over heels in love with it.

    You are well and truly bookmarked for a back-post trawl this weekend. I might just faint with all this baking inspiration! YUM

  9. Izy, I am in love with these bars! S’mores are my weakness and your gorgeous photos are making me drool this morning. I want one for breakfast. Thank you so much for sharing. I pinned these and it’s been quite popular so far this morning already.

  10. Izy- I can’t believe it’s taken me this long to discover your wonderful blog! You are seriously, crazy talented and make me feel like a huge under-achiever 😉

    These bars and everything on your blog are just gorgeous- I can’t wait see what you have in store next! xo

  11. I love your blog!! Your recipes look fabulous, your photography is spectacular, and the design is flawless!!! I also am impressed by the fact that you’re only 16! I thought I was a young blogger at 20! Keep up the amazing work!

  12. Wow, I just stumbled onto your blog and I love it! Beautiful photos and amazing looking food. Can’t wait to try making these. x

  13. Do you think I could do everything except the broiling in advance so that I could make these for a party and just stick them in the oven when I want to serve them?

  14. Usually I just pin and forget, but this one stuck with me and today was the day I made this. Easy to make, quick clean up, and SO DAMN GOOD! So so wrong, but so so right. Thanks!

  15. Found this recipe via Flipboard and made them that day for a girls get together. They were quickly nicknamed “crack” and were a total hit. Adding this to my arsenal of awesome desserts.

  16. I don’t understand why there has to be a million pictures of the finished product and no pictures of the process of making them… :/

  17. I just made these for a staff of over 100 people at work, and I was the conquering hero. I’m so happy I found your blog! 🙂

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