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Peanut Butter Cookie Brownies

Peanut Butter Cookie Brownies

After enjoying my new favorite snack, Trail Mix Peanut Butter Bars, I just couldn’t get enough peanut butter. So I decided to make peanut butter cookie brownies, yes you read that right, these brownies have a peanut butter cookie bottom topped with my super LAZY girl chocolate frosting!

Seriously, the frosting is so easy, it’s a little embarrassing!

Peanut Butter Cookies


   These brownies start out by using refrigerated peanut butter cookie dough, I used Pillsbury Big Deluxe Reese’s Mini Pieces Peanut Butter Cookie Dough, for even more delicious peanut butter flavor. I pressed the 12 cookie dough pieces into a 9×9 pan lined with foil. Don’t forget to line your pan with foil AND spray with non-stick cooking spray, this will make it so easy to take the brownies out of the pan to cut them into squares.

 I made my favorite brownie mix, Betty Crocker Triple Chunk Premium Brownie Mix with Hershey’s, according to the directions on the box. No need to jazz up brownie mix like a cake mix, I think they’re just as good from the box as they are from scratch but that’s just me!

 I baked these brownies for 30 minutes, make sure you watch them so they don’t burn…no one likes burnt brownies or cookies for that matter.

And lastly, I frosted these brownies with my lazy girl frosting! So here it is, all you need is 1/4 cup powdered sugar, 1/2 cup peanut butter and one tub of whipped chocolate frosting. Mix it all up and it taste just like you made it from scratch without all the work! Told ya it was a super lazy girl frosting. That’s it, now you have the best of both worlds, peanut butter cookies and brownies in one delicious brownie bar, kinda like my Chocolate Chip Cookie Brownie Bites!


Peanut Butter Cookie Recipe

Peanut Butter Cookie Brownies

Yield: 12 Brownies

Prep Time:15 minutes

Cook Time:30 minutes

Total Time:45 minutes

★ Make sure to read my BAKING TIPS above before you start baking!

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  • 16 ounces refrigerated peanut butter cookies dough
  • 1 box (15.25 oz.) brownie mix
  • 1 tub of whipped chocolate frosting
  • 1/4 cup powdered sugar
  • 1/2 cup creamy peanut butter


PRE-STEP: Preheat oven to 350F degrees. Line 9x9 pan with foil and spray with non-stick cooking spray.

STEP 1: Press peanut butter cookie dough into bottom of prepared pan.

STEP 2: Mix brownie mix according to package directions. Pour over peanut butter cookie dough and spread evenly with a spatula.

STEP 3: Bake for 30 minutes or until tooth pick inserted into center comes out clean. Let cool for 15 minutes before frosting.


STEP 4: In a large bowl, mix powdered sugar, peanut butter and whipped chocolate frosting until combined.

STEP 5: Frost cool brownies and cut into squares before serving.

*Store brownies in an airtight container at room temperature for up to 1 week. Unfrosted brownies can be frozen for up to 2 months.



Check out more delicious Brownie Recipes

Try these Chocolate Frosted Peanut Butter Bars next!

Chocolate Peanut Butter Bars

26 Responses to “Peanut Butter Cookie Brownies”

  1. Rosanne — June 16, 2018 at 1:35 am

    These are a go-to if I want a sure fire party pleaser! Love them & easy peasy 🙂

  2. angiemcgowan — May 23, 2014 at 8:53 am

    These peanut butter cookie brownies look amazing! I can’t get enough peanut butter!

  3. Mind Over Batter — May 21, 2014 at 11:18 am

    Good grief! I am sold on these – SOLD!! Wiping drool off my keyboard now…

  4. huntfortheverybest — May 21, 2014 at 11:12 am

    they look yummy!

  5. Lauren @ Healthy Delicious — May 21, 2014 at 9:15 am

    You’re killing me with all of these desserts! Once again, these look fantastic!

  6. Sarah Caron (Sarah's Cucina Bella) — May 21, 2014 at 9:08 am

    Those look so decadent!

  7. Rose | The Clean Dish — May 21, 2014 at 5:07 am

    These brownies just look too good to be true!! I’d kill for a slice right about now 🙂

  8. Serene @ House of Yumm — May 20, 2014 at 11:56 pm

    Is there anything better than chocolate and peanut butter?! And the fact that it’s a lazy girl version makes it that much better!! Although I prefer to call it the busy girl version 😉

  9. Britni Newton Vigil — May 20, 2014 at 10:05 pm

    And somehow you just made brownies even better, delicious Jenn!

  10. savoryexperiments — May 20, 2014 at 8:44 pm

    There is nothing better than peanut butter brownies… I’m licking my screen!

  11. Samantha — May 20, 2014 at 8:29 pm

    You’re doing it again with the peanut butter… I’m drooling over here!

  12. Back for Seconds — May 20, 2014 at 8:21 pm

    woah. i need these 🙂

  13. dinnermom — May 20, 2014 at 7:40 pm

    Love that such a simple twist looks so spectacular. Drooling!

  14. Paula - bell'alimento — May 20, 2014 at 2:51 pm

    OH my sweet goodness! I’d like half a pan please.

  15. Julie — May 20, 2014 at 2:05 pm

    Chocolate + PB are an awesome combo!

  16. Alyssa — May 20, 2014 at 11:26 am

    Jenn I love how you take store bought mixes and frostings and bring them to the next level! You are so creative. PB and chocolate are the ultimate duo, so I’m sure these are fabulous!

  17. foodlikecake — May 20, 2014 at 10:53 am

    These look SO good!

  18. BruCrew Life — May 20, 2014 at 10:08 am

    Good gravy!!! I am sitting here drooling over these easy and delicious bars! I am in love with the lazy girl frosting…totally my kind of frosting!!!

  19. Martha @ A Family Feast — May 20, 2014 at 9:47 am

    Oh yum – my favorite combination in one amazing dessert! Pinned!

    • Jenn Kurkiewicz — May 21st, 2014 @ 11:04 am

      Thanks for the pin, Martha! 🙂

  20. Beth @ The First Year Blog — May 20, 2014 at 8:36 am

    Jenn, I could eat everything you make. YUMM friend!

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