peanut butter brownie featured image
Delicious homemade brownies, loaded with Reese's Peanut Butter Cups and swirled with creamy peanut butter!
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Table of Contents
  1. Peanut Butter Brownies Recipe
  2. Ingredients
  3. How To Make Peanut Butter Brownies
  4. How To Make Peanut Butter Brownies Using Brownie Mix
  5. How to Store
  6. More Great Peanut Butter Recipes:
  7. Peanut Butter Brownies Recipe

If you love chocolate and peanut butter, you must try our Peanut Butter Brownies! Delicious homemade brownies, loaded with Reese’s Peanut Butter Cups and swirled with creamy peanut butter! They can be made from scratch or from a mix, either way, they’ll be done in less than 30 minutes!

peanut butter brownies hero image

Peanut Butter Brownies Recipe

Peanut Butter Brownies bring my two favorite things together in one delicious dessert. These moist and chewy brownies swirled with scoops of creamy peanut butter are always the hit of the party!

To me, there are few things more satisfying than a warm, fudgy brownie served with some creamy vanilla ice cream… except when someone adds peanut butter swirl and peanut butter cups to the mix!

Wow! This recipe is off the hook like I mean way off the hook!

You guys already know that I love brownies (you remember my Brownie Batter dip, right?)

You can make these delicious gooey treats all the way from scratch (hello bragging rights!) or from your favorite mix from a box (hello easy baking!)

These brownies will be an easy hit at your next family gathering, bake sale, or even become a family favorite!

Get your chocolate and peanut butter combo fix with these amazing gooey brownies! For other easy recipes that are PERFECT to share or bring along to any event, check out my S’mores dip, Edible Cookie dough, or my Banana Cream Pie dip (it’s literally bananas!)

peanut butter inside the brownie

Ingredients

If you’re a consistent baker like me, you’ll probably have more of these staple items in your fridge and pantry. The only thing I usually don’t have on hand is the mini peanut butter cups because I mean honestly, who can resist those little guys? The question is, who gets to them first, me or my kids?

So, to make this recipe from scratch you’ll need the following:

  • 1 ½ cups milk chocolate chips
  • 3 tablespoons vegetable oil
  • ½ cup granulated sugar
  • ½ cup all-purpose flour
  • ¼ teaspoon baking soda 
  • ¼ teaspoon salt
  • 2 eggs, room temperature
  • 2 tablespoons whole milk
  • 1 teaspoon of vanilla extract
  • ½ cup chopped peanut butter cups
  • 1 tablespoon all-purpose flour
  • ½ cup creamy peanut butter

If you want to make these peanut butter brownies using a brownie mix, see the directions below!

peanut butter brownie cut into squares

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How To Make Peanut Butter Brownies

In a heat-safe bowl, microwave the chocolate chips and the oil.
PRO-TIP: For best results microwave for 45 seconds. Stir the chips and oil, return to the microwave, and heat for another 10 seconds. Stir until the chips and oil are smooth.

In a medium-size bowl, whisk together the flour, granulated sugar, baking soda, and salt.

In a small bowl, whisk together the eggs, vanilla extract and milk. Add to the flour mixture. Now add the melted chips and stir until the batter is just combined.
PRO-TIP: Let the chocolate chip mixture cool before adding it to the egg mixture. Otherwise it will seize up.

together your butter, milk, sugar and chocolate chips

Toss the chopped peanut butter cups with 1 tablespoon of flour.

chopped mini peanut butter cup pieces and flour

Fold the coated chopped peanut butter cups into the batter. Mix just until all ingredients are combined.
IF USING A BOXED BROWNIE MIX: If you want to use a boxed mix, prepare it according to the directions on the box and follow along the recipe starting here!

mix the chopped peanut butter cups with the batter

Pour the batter into the prepared baking dish.

pour the brownie batter into lined baking dish

Using a 1 – 1 ½ tablespoon cookie scoop, or a regular tablespoon, dollop the peanut butter on top of the brownie batter.

put dollops of peanut butter on top of the brownie batter

Use a knife to swirl the peanut butter.

use a butter knife to swirl the peanut butter through the top of the batter

Bake for 30 minutes. Allow the brownies to completely cool before cutting.

brownie in baking dish

How To Make Peanut Butter Brownies Using Brownie Mix

Now, you know that I’m always after a way to make the easiest yet tastiest recipes!

So, if you’re not up to making this entire recipe from scratch but you’re still craving chocolate and peanut butter brownies, have no fear!

I have a quick and easy solution!

Just take your favorite brownie mix from a box, and then follow the recipe starting with adding in the chopped peanut butter cups!

How to Store

Keep any leftover brownies in an airtight container for up to 4 days.

peanut butter brownie on a plate

More Great Peanut Butter Recipes:

4.37 from 52 votes
peanut butter brownie featured image

Peanut Butter Brownies

Serves — 16
Delicious homemade brownies, loaded with Reese's Peanut Butter Cups and swirled with creamy peanut butter!
Prep Time 5 mins
Cook Time 30 mins
Total Time 35 mins

Ingredients
  

  • cups milk chocolate chips
  • 3 tbsp vegetable oil
  • ½ cup granulated sugar
  • ½ cup all-purpose flour
  • ¼ tsp baking soda
  • ¼ tsp salt
  • 2 eggs room temperature
  • 2 tbsp whole milk
  • 1 tsp vanilla extract
  • ½ cup chopped peanut butter cups
  • 1 tbsp all-purpose flour
  • ½ cup creamy peanut butter

Instructions
 

  • Preheat the oven to 350*. Line a 8x8 nonstick baking dish with parchment paper and set it aside.
  • In a heat safe small bowl, add the chocolate chips and the oil. Microwave for 45 seconds. Stir the chips and oil, return to the microwave and heat for another 10 seconds. Stir until the chips and oil are smooth. Set it aside.
  • Using a medium size mixing bowl, whisk together the ½ cup all-purpose flour, granulated sugar, baking soda and salt. Set it aside.
  • In a small bowl, whisk together the eggs, vanilla extract and milk. Add to the flour mixture. Now add the melted chips and stir until the batter is just combined. (make sure to let the chocolate chip mixture cool before adding, otherwise it will seize up.)
  • Toss the chopped peanut butter cups with 1 tablespoon of flour. Fold the coated chopped peanut butter cups into the batter. Mix just until all ingredients are combined.
  • Pour the batter into the prepared baking dish.
  • Using a 1 - 1 ½ tablespoon cookie scoop, or a regular tablespoon, dollop the peanut butter on top of the brownie batter. Use a knife to swirl the peanut butter. Bake for 30 minutes. Allow the brownies to completely cool before cutting.

Jenn's Notes

  • If you really want an even more rich brownie, add up to 1 cup of the chopped peanut Buttercups.
  • You can also use semi-sweet chocolate chips instead of milk chocolate.
  • You can serve this topped with ice cream...YUM!
Storage:  Keep any leftovers in an airtight container for up to 4 days.

Video

Nutrition Info

Calories: 250kcal | Carbohydrates: 28g | Protein: 5g | Fat: 14g | Saturated Fat: 7g | Trans Fat: 1g | Cholesterol: 24mg | Sodium: 142mg | Potassium: 98mg | Fiber: 1g | Sugar: 22g | Vitamin A: 75IU | Vitamin C: 1mg | Calcium: 36mg | Iron: 1mg

These Peanut Butter Brownies are truly the best and fudgiest chocolate brownies I’ve ever made! So, what’re you waiting for- go preheat the oven to 350 and get baking!

Jennifer Fishkind

About Jenn

Jenn is a mom to three beautiful boys, wife to an amazing husband, social influencer and blogger. I love all things easy recipes, easy crafts, all things hacks, traveling EVERYWHERE and feeding my Pinterest addiction!

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Comments

  1. 5 stars
    Very interesting recipe! My children were delighted. Thank you for sharing such detailed cooking instructions! This is really delicious brownies!

  2. 5 stars
    GREAT recipe! Full disclosure: I am not a baker. I love cooking. I hate baking, but my 7-year-old and I have been watching Kid’s Baking Championship and I felt inspired by the 11-year-olds! 😂 This is a great “base” brownie recipe even if you decide not to add the PB, but who would do such a thing?! PB and chocolate together is life. Definitely wait until they’ve completely cooled before attempting to cut. Enjoy this easy recipe!

  3. Sorry my recipe add was messed up so making a new one….Instead of using a bag and half of chocolate chips as stated in the peanut butter brownies I used 1/2 a bag chocolate chips and 4 tablespoons of cocoa. Worked fine.

  4. 2 stars
    Disappointing. Prepared exactly per the directions (with an oven that works just fine for every other recipe) and these came out cakey, not fudgy, and they fall apart. Flavor is fine (it’s PB and chocolate, right?) but otherwise unremarkable. Keep looking.
    Also: flour should be measured by weight, never volume.