Peanut Butter Cup Crack Brownies

Peanut Butter Cup Crack Brownies are completely over the top in the best way possible! Soft, fudgy brownies, with a layer of peanut butter cups, topped with a thick crispy peanut butter chocolate layer!

Peanut Butter Cup Crack Brownies | Cookies and Cups

These Peanut Butter Cup Crack Brownies are the dessert you should bring to any event where you want to seriously impress people. I can’t even begin to describe their deliciousness. They are consistently one of the most popular recipes on my website for good reason, EVERYONE LOVES THEM!

So I started with a box of Ghirardelli Double Chocolate Brownies… they are some of my favorite boxed brownies.

While they were baking I chopped up some peanut butter cups…
 photo IMG_9120_zps04f14a64.jpgIn all honesty I used peanut butter cup eggs that I have leftover from Easter. Shhh, don’t tell my kids.
Then I chopped up some peanuts…
 photo IMG_9119_zps9e957ca3.jpgMix those together.
 photo IMG_9126_zps6dc85b88.jpgWhen your brownie has 5 minutes left to bake pull it out of the oven and sprinkle your pb cups and peanuts all over the top…
 photo IMG_9127_zpsa0963514.jpgThe chocolate will get melty.

When they’re done pull them out and using an off-set spatula, spread them all over…
 photo IMG_9128_zpsa16890b6.jpgLet that situation cool.

Then melt some chocolate chips, peanut butter and butter in a bowl…stir in some vanilla, salt and krispie cereal…
 photo IMG_9136_zpsb5c86b55.jpgPour that all over top of the brownies.
 photo IMG_9144_zps60564266.jpgNow let that chill for about 2 hours.

When they’re set up you can dig in.
The foil makes the whole situation easier, so don’t forget to line your pan before you bake your brownies…
 photo IMG_9150_zpsda4da320.jpgThen go ahead and get to cutting…
 photo IMG_9151_zps882667fa.jpgGorg. Us.
Peanut Butter Cup Crack Brownies | Cookies and Cups
Have your your local rehab facility on speed-dial.  You’ll need them.


Peanut Butter Cup Crack Brownies


makes 25 squares


  • 1 box brownie mix (not family sized), prepared according to package directions in a 9×9 pan
  • 1/2 cup chopped salted or honey roasted peanuts
  • 12 peanut butter cups, chopped
  • 2 cups semi-sweet chocolate chips
  • 1 Tbsp butter
  • 1 heaping cup creamy peanut butter (or 1 1/4 cups)
  • 1 3/4 cups crispy rice cereal
  • 1 tsp vanilla
  • 1/2 tsp – 1 tsp kosher salt


  1. Bake brownies according to package directions in a 9×9 pan lined with foil.
  2. During last 5 minutes of baking, remove from oven and sprinkle chopped peanut butter cups and chopped peanuts on top. Return to oven for remaining 5 minutes to melt the chocolate.
  3. As soon as you pull them out of the oven, spread the melty peanut butter cups/peanuts with an off-set spatula to smooth over top. Let brownies cool.
  4. Next in a microwave safe bowl combine chocolate chips, peanut butter and butter. Heat in microwave for 1 minute, stirring when done. If needed, continue heating in 20 second increments until chocolate chips are melted.
  5. Stir in cereal, vanilla and salt until evenly combined.
  6. Pour over brownies and smooth. Chill until chocolate is set, about 2 hours.
  7. Cut into squares to serve


Store airtight for up to 3 days. You can store these at room temperature or in refrigerator.

Recipe adapted from bhg

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Hi! I’m Shelly and I’m an addict. Of the buttercream sort. I started this site a few years ago as a way to justify my sugary, buttery obsession with desserts. It has worked out well for me so far, because as it turns out you guys all love sugary, buttery desserts too! It feels good to know you're not alone, doesn’t it?

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187 Responses
  1. Pauline

    YUM! YUM! YUM! OMGOSH! These were delicious!!! Thank you for sharing the recipe. I made them in a 13×9, and switched the salty peanuts for unsalted walnuts

  2. Erica Esser

    These are really good, but in my opinion the top layer is way too thick. I could see from the photos that it would be, so I intentionally used a 9×13 brownie mix (and 6 extra peanut butter cups) to spread out that top layer a bit. I like the top layer as an accent to the brownie layer, but this just overpowers it, even with my adjusted ratio. Next time I will halve the part of the recipe for the top layer.
    Thanks for the recipe!

  3. Debbie Smith

    Made these this past weekend, and they were AMAZING! I want to know if I can double the recipe and put it in a 9 x 13. Have you ever tried this?

  4. Celeya

    Who ARE YOU??? OMG these are a DREAM COME TRUE!!! Perfect in every way!!! My fav brownie mix too! Reese’s eggs ARE THE BEST! Somehow they just seem more peanut buttery. Looks like you cut off the edges of the brownies so they are PERFECT!!! I LOVE YOU!!!

  5. KarenB

    When I first looked at this picture someone shared on FB, I thought it was brownies, peanutbutter cups and then No Baker Chocolate Oatmeal cookies spread on top. Can you IMAGINE? I WILL be making these for our next Sunday dinner at my daughters

  6. Samantha

    These are UNREAL. The best brownie/bar/chocolate/peanutbuttery thingy I have ever made! However, addicting? beyond addicting. Also, I think my recipe builder put these bad boys out at about 600 calories per square! Worth it? YES.

  7. Jessica

    i made these for a bbq. I set them out and within a few minutes they were gone. Everyone raved about them and if there was an award for best dessert these would likely have won. Super easy, will definitely make again!

  8. I am a little confused about using that much salt. Also I can’t find where it is to go. Do you add it to the chocolate chip part ? Maybe using 1 teaspoon of salt is a typo ?

    1. Shelly

      You can add 1/2 tsp if you think that you might not like the salt…it’s all personal preference. I like the salty in my sweets, so I tend to add more. Start with less and add more if you feel necessary. Also, I added it when I added the vanilla and cereal. I adjusted the recipe to read more clearly on that! Thanks!!

  9. Anne Coffman

    Just made these tonight and the picture looks like much less topping than I had. The ratio of topping to brownie/cups is more than 2:1. I’d make them again but cut the topping in half so you taste the brownies more. Thanks- great sugar buzz!

  10. Donna Howard

    Can’t wait to make these tomorrow. But I’m just curious, what’s the difference with the family sized box of brownies (of course I looked at what I had and that was ALL I have!!) I could get another box tomorrow but I was just curious. Thanks so much Shelly and love love love your blog and ‘low calorie’ (ha ha) recipes!!

  11. Nicole

    Just made these and forgot to put the peanuts in with the Reese’s. Soooooo … I chopped them and put them on top instead. It’s cooling in the fridge and I’m sure it will be fine AND it looks so pretty. 😉

  12. Nanette

    These look as evil as my bodacious brownies, I have to try these I like the rice crispies in there, that is interesting. I may add some instant espresso like mine have for that extra buzz!!!

Leave a Reply

Shelly Hi! I’m Shelly and I’m an addict. Of the buttercream sort. I started this site a few years ago as a way to justify my sugary, buttery obsession with desserts. It has worked out well for me so far, because as it turns out you guys all love sugary, buttery desserts too! It feels good to know you're not alone, doesn’t it?

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