This recipe for mini Peanut Butter Cup Brownies is kind of like what would happen if you crossed brownies with Reese’s peanut butter cups. Instead of a milk chocolate shell, imagine swapping in a brownie instead. Whoa! Pull out your favorite boxed mix brownies and make this delicious, peanut buttery, chocolate treat in no time!

girl with peanut butter brownie

Chocolate + Peanut Butter = The Best Kind of Dessert!

When you think of love, what do you think of? Hearts? Candy? Kisses? Or if you’re like me…CHOCOLATE!

I love, love, LOVE chocolate.

I love chocolate so much that my mom told me that as a baby I wouldn’t drink white milk so she added a little…you guessed it…Hershey’s Syrup to my bottle! haha! I have no idea why I have this addiction, er…I mean, love of chocolate!

As a matter of fact, I told my husband today that I loved him MORE THAN chocolate. And, he took it as a compliment because he knows just how much I love the dark, creamy, sweet stuff.

And these Peanut Butter Cup Brownies rank right up there with my all-time favorite desserts!

(If you love peanut butter, you’ll also love my No-Bake Peanut Butter Bars!)

Peanut Butter Cup Brownie Recipe

Peanut Butter Cup Brownies! Pull out your favorite boxed mix brownies and make this delicious, peanut buttery, chocolate treat in no time!

So, when looking at my favorite inspiration site, Pinterest, when deciding what to make for dessert for dinner with friends last week, I knew that I had to make these yummy Peanut Butter Cup Brownies I’ve been eyeing lately.

And, I’ve got to tell ya…they were worth every. single. calorie.

The recipe I found called for you to make your own homemade brownie mix for these, but I used my favorite go-to boxed brownie mix instead.

Peanut Butter Cup Brownies on a tray

Ingredients + Variations

Here’s what you’ll need to make these mini Peanut Butter Brownies:

  • Boxed brownie mix – Use your favorite variety!
  • Peanut butter – Again, use whatever you like best, whether it’s smooth and creamy, natural, or chunky.
  • Semi-sweet chocolate chips – You could swap in mini chocolate chips or milk chocolate chips, too.
  • Peanut butter morsels – Or double the amount of chocolate chips. It’s up to you!

Since this Peanut Butter Brownie recipe is one of my faves, I have a bunch of variations to share with you if you want to mix things up a bit. Try:

  • Using chopped peanuts instead of or in addition to the peanut butter morsels
  • Melting some chocolate chips, then drizzling the chocolate over the tops of the brownies once they’ve cooled
  • Chopping some mini Reese’s peanut butter cups and using those as a topping instead of the chips
  • Using mini Reese’s Pieces as a topping
  • Dusting the brownies with powdered sugar

Peanut Butter Cup Brownies! Pull out your favorite boxed mix brownies and make this delicious, peanut buttery, chocolate treat in no time!

How to Make Mini Peanut Butter Cup Brownies

1. Prepare

Preheat the oven to 350ºF and grease a 12-cup muffin tin.

2. Make the Brownies

Follow the instructions on the boxed brownie mix and make the brownie batter. Divide the batter into the 12 muffin cups, then bake for about 20 minutes, or until a toothpick inserted into the center comes out mostly clean, with only a few crumbs sticking to it.

3. Add the Peanut Butter

Let the brownies cool for a few minutes, then press the back of a spoon into the centers to create an indentation. Warm the peanut butter in the microwave until it’s smooth, then spoon a small amount into each indentation.

4. Top the Brownies

Sprinkle the chocolate chips and peanut butter chips over the tops of the brownies, then allow them to cool completely.

Peanut Butter Cup Brownie steps

FAQ

How do you store Peanut Butter Brownies?

Store your brownies in an airtight container at room temperature. They’ll last for about 3 days, although you’ll probably eat them way before that!

Should I make the recipe for fudgy brownies or cake brownies on the package?

If your boxed brownie mix has recipes for cake brownies and fudgy brownies on the back, go with the fudgy recipe. It’s better for holding the peanut butter!

Peanut Butter Cup Brownies! Pull out your favorite boxed mix brownies and make this delicious, peanut buttery, chocolate treat in no time!

Peanut Butter Cup Brownies! Pull out your favorite boxed mix brownies and make this delicious, peanut buttery, chocolate treat in no time!

I’ve found I get much more compliments on using a box mix than when I make the best homemade recipe I have.

So, run to the pantry and pull out your favorite brownie mix, peanut butter, chocolate and peanut butter chips and get started.

These are soooooo worth it!

More Peanut Butter Recipes to Try

If you love this recipe for peanut butter brownies, try these peanut butter desserts next:

Peanut Butter Cup Brownies! Pull out your favorite boxed mix brownies and make this delicious, peanut buttery, chocolate treat in no time!

Peanut Butter Cup Brownies! Pull out your favorite boxed mix brownies and make this delicious, peanut buttery, chocolate treat in no time!

Peanut Butter Cup Brownies

Peanut Butter Cup Brownies! Pull out your favorite boxed mix brownies and make this delicious, peanut buttery, chocolate treat in no time!
3.94 from 44 votes
Course: Dessert
Cuisine: American
Author: All Things Mamma
Servings: 24
Prep Time: 5 minutes
Cook Time: 20 minutes
Total Time: 25 minutes

Ingredients  

  • 1 box of your favorite boxed brownie mix
  • 1/4 cup of peanut butter
  • semi-sweet chocolate chips
  • peanut butter morsal chips

Instructions 

  • Preheat oven to 350 degrees
  • Grease a 12 cup cupcake pan or a mini muffin tin if you prefer bite size
  • Prepare brownies as directed on box
  • Spoon the brownie mix evenly into tin. I use an ice cream scoop or mini scoop for even amounts.
  • Bake as directed for about 20 minutes or until a cake tester inserted in the center comes out mostly clean with a few crumbs.
  • Allow to cool for a few minutes and then use the back of a spoon to create an indentation in the center of the brownies.
  • Melt peanut butter in the microwave for 30 secs and stir until smooth.
  • Spoon a small amount into each indentation.
  • Top with both chocolate and peanut butter chips.
  • Cool in pan and then remove to a wire rack to harden up.
  • Keep in a sealed container unless you eat them right away...which you will!!

Video

Keyword: brownies, peanut butter, peanut butter brownies
Did you make this recipe?Mention @kasey_allthingsmamma or tag #allthingsmamma!

*Recipe adapted from here.

Peanut Butter Cup Brownies

Categories: ,

About Kasey Schwartz

For over 15 years, Kasey Schwartz, the mastermind behind All Things Mamma, has been the ultimate go-to for mouthwatering family recipes. Her work has been featured on Today.com, Buzz Feed, Better Homes and Gardens, and more, making her your go-to mom next door for all things delicious and family-friendly.

Comments

  1. Pauline beaudry says:

    If I’m using the mini muffin tins ,how long do I cook them for????

  2. Pauline Beaudry says:

    Do we make them in regular muffin tin?

    1. Michelle - ATM Team says:

      You can use a regular cupcake pan or mini muffin tin!

  3. I don’t know what I’m doing wrong I tried 2 batches the first I baked for 20 min.like it said but when I took them out I couldn’t put the indentation they were already solid the next batch I baked for only 10 min. and still to baked to make the indentation

  4. Hello! I am planning to make these later today. Should I spray the muffin pan or use liners?

    Thanks!

    1. Michelle - ATM Team says:

      We suggest greasing the tin here but I’m sure lining them will work too!

  5. Bea Priddle says:

    Turned out great…….can they be frozen?

  6. Seems like you would need more than 1/4 cup peanut butter?

  7. Nichole Carney says:

    5 stars
    Can you use paper baking cups when you make these?

  8. human growth hormone products says:

    I actually treasure your piece of work, Great post.

  9. 5 stars
    OK so, there are two sizes of brownie mix. An 8 x 8 pan size, and a 9 x 13 pan size.
    Please elaborate.

  10. 3 stars
    What size brownie mix? 8×8″ pan or the 9×13″ size?

  11. Olha Parker says:

    These cus are co much deleicious! I want to make them today, fortuntely I have all the ingredients 🙂

  12. Chris Bruno says:

    How many does it make in the mini muffin pan, 24?

    1. Actually, more like 30. 🙂 I love them this way, too!

  13. Brand Inquiry says:

    This is my first time go to see at here and i am genuinely impressed to read everthing at one place.

  14. Which brownie mix did you use? I couldn’t decide on which to choose at the grocery store today!

    1. I like Duncan Hines Chewy Fudge Brownies. They always turn out perfect! I just linked you up in the post, too! 🙂 Let me know how they turn out!

  15. They taste as wonderful as they look!, didn’t have time to put them in a container.

    1. YAY! I’m so glad to hear that!

      1. Hey I’m wondering what you need to cook these !!

  16. Very interesting , would like to subscribe .

  17. Do you use regular size muffin tin, or mini muffins?

    1. I use both! Whichever you prefer!

      1. Bonnie Budura says:

        When using mini muffin pan, how long do you bake brownie mix? I thought the mini size would be great for a church social. TY!

      2. I would say about 10-12 minutes. Check to see if a toothpick inserted in the center comes out clean. If it doesn’t, bake a few minutes longer. Good luck!

  18. Carol Elizabeth Harper Doyle says:

    These look so good. Want to try making these ones.

  19. Ok yum, those look sinful!!!

  20. These look great. I love chocolate and peanut butter so it’s a perfect combo!

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