Peanut Butter Cup Crunch Brownies

Oh. My. Goodness. These brownies are epic! Earth shattering goodness! 🙂 My chocolate and peanut butter obsession has now gone to a whole new level after trying these brownies. Peanut Butter Cup Crunch Brownies with three layers of rich and decadent goodness! A chewy, fudgy, double chocolate brownie with a crunchy peanut and Reese’s cup middle that is topped off with a peanut buttery, milk chocolately Rice Krispies mixture that will make you weak in the knees. Trust me, you might want to sit down when you take that first bite! 😉 I used my favorite brownie recipe as the base for these addicting bars, however, feel free to use your own favorite fudgy brownie recipe (just make sure that it’s baked in a 9×13-inch baking dish). Don’t say I didn’t warn you…these brownies are addicting. Make sure you have friends and family to share these babies with, otherwise, don’t blame me if you finish off the entire pan in one sitting! 😉

One Year Ago: Steel Cut Oatmeal 

Peanut Butter Cup Crunch Brownies

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  • 1/3 cup Dutch-processed cocoa
  • 1 ½ teaspoons instant espresso
  • 1/2 cup plus 2 tablespoons boiling water
  • 2 ounces unsweetened chocolate, finely chopped
  • 4 tablespoons (1/2 stick) unsalted butter, melted
  • 1/2 cup plus 2 tablespoons vegetable oil
  • 2 large eggs
  • 2 large egg yolks
  • 2 teaspoon vanilla extract
  • 2 ½ cups sugar
  • 1 ¾ cups unbleached all-purpose flour
  • 3/4 teaspoon table salt
  • 1/2 cup salted peanuts
  • 8 Reese’s peanut butter cups, chopped
  • 1½ cups milk chocolate chips
  • 1½ cups creamy peanut butter
  • 1/2 tablespoon unsalted butter
  • 1½ cups Rice Krispies cereal


  1. Preheat oven to 350F. Butter the bottom and sides of a 9×13 inch metal baking pan. Put a long piece of parchment paper in the bottom of the pan, letting the parchment extend up two sides of the pan and overhang slightly on both ends. Place another piece of parchment paper in the same manner, perpendicular to the first sheet. (This will make it easy to remove the bars from the pan after they have baked.) Butter the parchment.
  2. In a large bowl, whisk cocoa, espresso powder, and boiling water together in large bowl until smooth. Add unsweetened chocolate and whisk until chocolate is melted. Whisk in melted butter and oil. Add eggs, yolks, and vanilla extract and continue to whisk until smooth and homogeneous. Whisk in sugar until fully incorporated. Add flour and salt and mix with rubber spatula until combined.
  3. Transfer the batter to prepared pan, smoothing the top. Bake 25 minutes. Remove from the oven and sprinkle the top with the peanuts and chopped peanut butter cups. Return to the oven and bake for 5 to 10 additional minutes or until toothpick inserted into the center comes out with just a few moist crumbs attached. Transfer pan to wire rack and cool 2 hours.
  4. In a medium bowl, melt the chocolate chips, peanut butter and butter in microwave for 1 minute. Stir until smooth, microwaving for additional 30 seconds bursts until melted and smooth. Stir in the cereal to evenly coat. Evenly pour the mixture over top of the brownies. Spread to cover evenly. Refrigerate for 2 hours or until set. Using parchment overhang, lift brownies from pan. Cut into 2-inch squares and serve.

Yields: 24 brownies
Prep Time: 15 minutes
Bake Time: 30 minutes

Source: adapted from Brown Eyed Baker, Originally adapted from How Sweet It Is, brownie recipe from Cook’s Illustrated’s Chewy Brownies, March 2010

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24 Responses to Peanut Butter Cup Crunch Brownies

  1. elsellin says:

    I am speechless….I just need these in my life soon!

  2. Vivienne says:

    OMG….I think I just gained 10 lbs. by looking at this! Soooo decadent!

  3. spiffycookie says:

    Why must be going out of town tomorrow morning?? I want these bad! I will be dreaming about them until I return.

  4. Ah, that last picture has me drooling! These look SO GOOD!!

  5. These like da BOMB!!!

  6. ChgoJohn says:

    These look incredible! Love it!

  7. Those are illegal in some states. Thankfully not here!

  8. Wow….you had a stroke of genius…those are BRILLIANT!!! I have almost everything required to make them, too….DANGEROUS!!!

  9. Reblogged this on alisueonthemove and commented:
    Oh my gosh!! Where is Besty when I need her to be here to help with the Rice Krispies mix!!! Thank you so much for this!

  10. Michael Ann says:

    Oh WOW!!! These look AMAZING!! I have been on a major PB kick lately. MUST try these!

  11. These look really good, especially in photos #1 and #2.

  12. Simply Tia says:

    These look super duper fantastic!! And soooo very rich. Yum Yum Yum.

  13. KeepItSweet says:

    Oh wow do these look amazing!

  14. Those look to die for! I would eat to many and die! Maybe I will make and sample then take them to church and let my friends demolish the rest.
    Peach State

  15. Wow, I’m coming back here and trying these (shhhh, don’t tell my trainer!) xo Smidge

  16. Kiri W. says:

    Oooooo, what a treat! These look sooo amazing! 🙂

  17. Um, I literally don’t know what to do right now, everything about these brownies are so incredible I might have to run out and buy the ingredients to make them this weekend! They are so decadent (but I love it!!)!

  18. These look absolutely amazing! I don’t know who wouldn’t love them. Yum!

  19. Mj says:

    I made these for Easter. They were to die for and love by all!

  20. Pingback: German Chocolate Brownies for Our 4th Wedding Anniversary | Sweet Pea's Kitchen

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