The EASIEST Peanut Butter Brownie Recipe | All Things Mamma (2024)

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!

The EASIEST Peanut Butter Brownie Recipe | All Things Mamma (1)

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 Browniesrank 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

The EASIEST Peanut Butter Brownie Recipe | All Things Mamma (2)

So, when looking at my favorite inspiration site, Pinterest, whendecidingwhatto 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.

The EASIEST Peanut Butter Brownie Recipe | All Things Mamma (3)

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

The EASIEST Peanut Butter Brownie Recipe | All Things Mamma (4)

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.

The EASIEST Peanut Butter Brownie Recipe | All Things Mamma (5)

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!

The EASIEST Peanut Butter Brownie Recipe | All Things Mamma (6)

The EASIEST Peanut Butter Brownie Recipe | All Things Mamma (7)

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 Cookies
  • No-Bake Old-Fashioned Peanut Butter Balls
  • No Bake Peanut Butter Pie
  • Peanut Butter Kiss Cookies
  • Chocolate Peanut Butter Pie

The EASIEST Peanut Butter Brownie Recipe | All Things Mamma (8)

The EASIEST Peanut Butter Brownie Recipe | All Things Mamma (9)

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!

3.92 from 46 votes

Pin RecipeSave RecipeRate RecipePrint Recipe

Course: Dessert

Cuisine: American

Author: All Things Mamma

Servings: 24

Prep Time: 5 minutes minutes

Cook Time: 20 minutes minutes

Total Time: 25 minutes 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

Did you make this recipe?Mention @kasey_allthingsmamma or tag #allthingsmamma!

*Recipe adapted from here.

The EASIEST Peanut Butter Brownie Recipe | All Things Mamma (10)

Categories: , Recipes

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.

Read More About Me

The EASIEST Peanut Butter Brownie Recipe | All Things Mamma (2024)

FAQs

How do you make brownie mix richer? ›

Fall Back on Butter

Most boxed brownies use canola or vegetable oil. Sub in the same amount of melted butter for brilliant results. This makes the brownies that much richer and more delicious. Bonus points if it's high-quality, like our Test Kitchen's favorite butter.

How to pimp brownies? ›

Crushed potato chips, pretzels, and salted nuts stirred in or sprinkled on before baking can add textural interest, plus a little savoriness that can make the rich chocolate flavor more pronounced. A shower of sea salt or flaky salt like Maldon over baked brownies before slicing makes for a dramatic, sparkly finish.

How can I improve my Betty Crocker brownie mix? ›

Six Sneaky Ways To Make Brownie Mix Taste Homemade
  1. Use melted butter instead of oil. ...
  2. Use milk, flavored creamers, or brewed coffee instead of water. ...
  3. Add extracts or flavorings. ...
  4. Add mix-ins like cookies and candies. ...
  5. Underbake, just slightly. ...
  6. Toppings.
Jan 19, 2021

What happens when you add milk to brownie mix? ›

You can make several substitutions to help improve a boxed brownie mix and make it taste homemade. One change is to use milk or heavy cream instead of water. This change will make brownies more moist and gooey since milk is more fatty and flavorful than water.

How to make a boxed brownie mix better? ›

The first and easiest upgrade you can give to your boxed brownie mix is to add a tablespoon of instant coffee to the batter. Adding coffee to your brownies boosts their flavor because its bitter quality balances out sweetness, making it less overpowering. It allows that delicious chocolate flavor to really shine.

What happens if you use milk instead of water in brownie mix? ›

Brownie recipes traditionally call for water as it serves as a neutral liquid that hydrates the dry ingredients. However, using milk instead of water can impart a creamier texture and richer flavor to your brownies. The milk's fat content adds a smoothness that water cannot provide, resulting in a more indulgent treat.

How to make fudgy brownies vs cakey brownies? ›

Fudgy brownies have a higher fat-to-flour ratio than cakey ones. So add more fat—in this case, butter and chocolate. A cakey batch has more flour and relies on baking powder for leavening. The amount of sugar and eggs does not change whether you're going fudgy or cakey.

Should you add an extra egg to brownie mix? ›

If you want to get a little more creative with your brownie mix hacks, add an extra egg to the batter. The extra protein will help thicken up the batter and make it fluffier, creating a more decadent, fudgy texture. You can also add the yolk by itself in addition to the 2 eggs a box brownie mix typically calls for.

Can you use butter instead of oil in Betty Crocker brownie mix? ›

That is a great question. You can absolutely substitute butter for the vegetable oil. Use the same quantity specified in the directions (for example, if it calls for 1/3 cup of oil, use 5 1/3 tablespoons of butter).

How to make Betty Crocker brownies fluffier? ›

Add an extra egg to your brownie batter to make more cake-like brownies. There are directions on the back of the box.

Can I use butter instead of oil in brownie mix? ›

You can absolutely substitute butter for the vegetable oil. Use the same quantity specified in the directions (for example, if it calls for 1/3 cup of oil, use 5 1/3 tablespoons of butter). Melt it down, then let it cool a bit. You might not ever go back to oil!

Is butter better than oil for brownies? ›

In brownies, both butter and oil will offer a moist, tender texture, but only butter will give the dish the aeration needed for rising brownies well. If you use a cake brownie, butter is a better option because it helps rise the batter. For denser, fudge type brownies, oil is permissable.

What does over mixing brownie batter do? ›

Over mixing brownie leads to too much air incorporation and can leave your brownie looking and tasting like a chocolate cake. Under mixing will lead to insufficient combination of your core ingredients and so the brownie texture will not form to perfection.

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