April 1, 2022| By

Brown Butter Peanut Butter Cup Blondies

Prep Time: 45 minutes
Cook Time: 25 minutes
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Peanut butter cup blondies but make it with brown butter! These blondies have a chewy center with crisp edges and Reese's peanut butter cups in every bite. The addition of brown butter make them even better!

I love peanut butter cups so I figured, why not add them to blondies? You've got the chocolate peanut butter cups and the buttery richness of blondies - it's a match made in heaven.

peanut butter cup blondies cup into squares on a cooling rack

It's the fifth day of BrowniePalooza and I had to break up all of the chocolate recipes with a blondie recipe. This is not to say that chocolate it bad by any means, but I figured it's be a nice change from all of the brownie recipes. And what better way to add some zing than with these Peanut Butter Cup Blondies?

Anywho, these blondies are incredible. They've got crisp edges, a chewy center, and there's peanut butter cups in every bite. Those chunks of peanut butter and chocolate with the brown butter is just incredible. Don't walk, run and make these blondies!

a blondies with a bite taken out of it with peanut butter cups

how to make peanut butter cup blondies

This recipe is super easy and less than 10 ingredients! There's also only 3 simple steps to this recipe which I know you'll love!

  1. Brown the butter then add brown sugar and whisk together. Continue to add vanilla extract and eggs.
  2. Fold in dry ingredients - flour, baking powder, and salt. Then add in the peanut butter cups. (I used individual peanut butter cups. I cut up half and kept the other half whole)
  3. Press additional peanut butter cups on top of the batter and bake in a 9x13 baking pan and bake for 25-28 minutes.
peanut butter cup blondies on a cooling rack with a butter knife

baking tips

  • Freeze the peanut butter cups prior to baking the blondies. (I used Reeses Peanut Butter Cups - they're the best in my opinion)
  • I say this with almost all of my brownie recipes, it's better to under bake than over bake! Be mindful of baking times.
  • If you do not have peanut butter cups, a simple substitution would be to reduce the flour by a ½ cup and add a ½ cup of peanut butter and 2 cups of chocolate chips. It'll be just as delicious!
  • Allow the blondies to cool for about 15-20 minutes prior to cutting into them. This ensures that they're fully set.
blondies on a cooling rack with peanut butter cups

why you'll love these peanut butter cup blondies

There are so many reasons but most importantly:

  • they're easy to make
  • they have brown butter (yum!)
  • they're soft and chewy!
  • there's Reese's peanut butter cups in every bite!
  • it's the best dessert for all peanut butter and chocolate lovers!

more peanut butter and chocolate recipes you'll love!

baked goods with flake salt on top

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Let's stay connected on social media and continue to cook together! Also, if you decide to make this recipe, please leave a star rating on the recipe card and leave a comment below! Tag @BritneyBreaksBread on Instagram and hashtag #britneybreaksbread so I can see your creations! I hope that you love this recipe as much as we do!

peanut butter cup blondies cup into squares on a cooling rack

Brown Butter Peanut Butter Cup Blondies

Peanut butter cup blondies with brown butter! These blondies have a chewy center with crisp edges and reeses peanut butter cups in every bite. The addition of brown butter make them even better!
Serving: 8 servings
Prep Time: 45 minutes
Cook Time: 25 minutes
Total Time: 1 hour 10 minutes
Calories: 531kcal


  • 1 cup brown butter
  • 1 ½ cups brown sugar
  • 1 tbsp vanilla extract
  • 2 eggs
  • 2 ¼ cup all purpose flour
  • ½ tsp baking powder
  • ½ tsp kosher salt
  • 2 cups peanut butter cups


  • Freeze peanut butter cups for at least 30 minutes.
  • Preheat oven to 350 degrees. Brown butter in a pan and add to a large mixing bowl. Add brown sugar and whisk together for 2-3 minutes and allow it to cool slightly. Whisk in vanilla extract and eggs, one at a time, constantly whisking to prevent the eggs from cooking.
  • Fold in flour, baking powder, and kosher salt until just combined.
  • Roughly chop peanut butter cups and fold half into the batter. Spray a 9x13 baking pan with nonstick baking spray or line with parchment paper. Add batter to the pan and top with remaining peanut butter cups.
  • Bake for 25-27 minutes, until batter is no longer jiggly.


Calories: 531kcal | Carbohydrates: 70g | Protein: 6g | Fat: 26g | Saturated Fat: 15g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 7g | Trans Fat: 1g | Cholesterol: 102mg | Sodium: 397mg | Potassium: 132mg | Fiber: 1g | Sugar: 42g | Vitamin A: 771IU | Vitamin C: 1mg | Calcium: 71mg | Iron: 2mg
Course: Dessert
Cuisine: American

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Recipe Rating

  1. 5 stars
    I love love loved this recipe. I was the queen of the belle when I brought this to my “Girls Night Out” event! The brownies were eaten before the main meal…. SMH

  2. 5 stars
    These Blondies hit!! If your someone that doesn’t like too much chocolate, like me, you’ll love these. You get two treats in one, like a dense cake with Reese cups in it! It’s just great! My taste buds thank you

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