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Bars & Brownies / Desserts

The Best Chewy Peanut Butter Blondies

These are the best chewy peanut butter blondies are rich, fudgy, and loaded with creamy peanut butter. Just 10 ingredients make up these delicious cookie bars, and they require no chill time. Serve with a sprinkle of flaky sea salt or fold in chopped peanuts, chocolate chips, or your favorite candy. Substitute crunchy peanut butter for more texture and crunch. Perfect for peanut butter lovers!

sliced peanut butter blondies with a knife

Highlights of the chewy peanut butter blondies:

  • Thick & fudgy
  • Simple ingredients
  • Can be a one-bowl recipe
  • Uses melted butter so no mixer needed
  • Can be made with creamy or crunchy peanut butter
  • Family favorite
  • Quick & easy bar to bring to any occasion
corner piece

These chewy blondies are a great simple, sweet treat

First Steps:

  • Melt butter
  • Add in sugars and mix well
  • Add in eggs and vanilla
  • Stir to combine

Variations of these chewy peanut butter blondies:

  • Use crunchy peanut butter or fold in chopped peanuts
  • Mix in your favorite chocolate candy or chocolate chips
  • Fold in chopped nuts
  • Swirl in Nutella

Tools I used for this easy recipe:

  • KitchenAid 6 Qt. Stand Mixer – I always recommend a stand mixer as it saves time and helps to keep baked goods consistent.
  • Rubber Spatula – a must for any home baker! Perfect for scrapping cookie dough out of the mixing bowl.
  • USA Pan 8″ Square Pan – another USA Pan product I love! The corners of my bars and cakes never stick and I love the squared of edges this pan creates.

Second Steps:

  • Whisk in peanut butter until smooth
  • Fold in dry ingredients

Why use room temperature eggs in cookies and blondies?

Room temperature eggs mix together a lot easier than cold eggs, resulting in lighter, fluffier baked goods! Room temperature eggs also whip up a lot better which makes them important to use when making meringue or items that call for a lot of eggs like, angel food cake. Don’t have room temperature eggs? Set a few cold eggs out 20-30 minutes before you need them.

Using a stand mixer makes this recipe super easy! Grease & line baking pan for best results.

Quick steps for these easy blondies :

  • Preheat oven
  • Combine dry ingredients
  • Cream butters and sugars
  • Mix in eggs, and vanilla
  • Mix in dry ingredients
  • Transfer to a greased baking pan
  • Bake & Enjoy!

If you like these peanut butter blondies, you’ll love these other easy recipes…

Salted Peanut Pretzel Chocolate Chip Cookies

Peanut Butter & Tahini Banana Bread

Thick & Chewy Peanut Butter Cookies

Chocolate Peanut Butter Blondies

bottle of milk with sliced peanut butter blondies

Grocery List for this easy recipe:

  • Unsalted butter, softened
  • Granulated Sugar
  • Light Brown Sugar
  • Natural Peanut Butter, creamy or crunchy (or substitute other nut butters like almond butter, sunflower seed butter, or cashew butter)
  • Large Whole Eggs
  • Pure Vanilla extract
  • All-purpose Flour
  • Baking Soda
  • Baking Powder
  • Kosher Salt
  • Flaky Sea Salt, for topping
uncut pan of blondies with sea salt sprinkled on top

Finish with a sprinkle of flaky sea salt for the perfect sweet & salty combo!

Instructions for the peanut butter blondie recipe:

  • Preheat oven to 350 degrees F. Grease or line an 8 x 8 baking pan, set aside. In a small mixing bowl combine the flour, baking soda, baking powder, and salt, stir to combine and set aside.
  • In a large bowl, melt butter. Add in sugars and whisk well to combine, 2-3 minutes. Add in eggs, one at a time, and vanilla. Mix in peanut butter until smooth.
  • Slowly add in the dry ingredients and mix, the mixture will be fairly thick. Transfer into the prepared baking pan.
  • Bake at 350 degrees for 25-30 minutes or until a toothpick inserted comes out clean. Remove form the oven and let cool on a wire rack to completely set, sprinkle with flaky salt and allow to cool completely before cutting. These will keep for 4-5 days in an airtight container.

Notes:

*If desired substitute crunchy peanut butter, reduce down to 3/4 cup.

*Allow blondies to cool completely before slicing.

sliced blondies, next to a knife, and cup of milk

Peanut Butter Blondies

4.80 from 5 votes
Course: Dessert
Keyword: Blondies, Cookies, Dessert Bars, Peanut Butter
Prep Time: 10 minutes
Cook Time: 30 minutes
Total Time: 40 minutes
Servings: 9 Blondies
Calories: 545kcal
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Equipment:

  • 8×8 Baking Pan

Ingredients: 
 

  • 1 3/4 cups All-purpose flour
  • 1 tsp Baking powder
  • 1/4 tsp Baking Soda
  • ½ tsp Salt
  • 1/2 cup Unsalted butter, melted
  • 1 cup Creamy peanut butter*
  • 1 cup Light brown sugar, packed
  • 1 cup Granulated white sugar
  • 2 Eggs, room temperature
  • 1 tbsp Vanilla extract
  • Flaky sea salt, for garnish

Instructions:

  • Preheat oven to 350 degrees F. Grease or line an 8 x 8 baking pan, set aside. In a small mixing bowl combine the flour, baking soda, baking powder, and salt, stir to combine and set aside.
  • In a large bowl, melt butter. Add in sugars and whisk well to combine, 2-3 minutes. Add in eggs, one at a time, and vanilla. Mix in peanut butter until smooth.
  • Slowly add in the dry ingredients and mix, the mixture will be fairly thick. Transfer into the prepared baking pan.
  • Bake at 350 degrees for 25-30 minutes or until a toothpick inserted comes out clean. Remove form the oven and let cool on a wire rack to completely set, sprinkle with flaky salt and allow to cool completely before cutting. These will keep for 4-5 days in an airtight container.

Notes:

*If desired substitute crunchy peanut butter, reduce down to 3/4 cup.
*Allow blondies to cool completely before slicing.

Nutrition:

Serving: 1 barCalories: 545 kcalCarbohydrates: 71 gProtein: 11 gFat: 26 gSaturated Fat: 10 gPolyunsaturated Fat: 5 gMonounsaturated Fat: 10 gTrans Fat: 1 gCholesterol: 63 mgSodium: 361 mgPotassium: 264 mgFiber: 2 gSugar: 49 gVitamin A: 368 IUCalcium: 71 mgIron: 2 mg

Nutritional information is only an estimate. The accuracy of the nutritional information for any recipe on this site is not guaranteed.

one slice of a blondie

Did you make this recipe?

I would love to see it! Take a picture and post to Instagram with the tag @theheartylife and the hashtag #theheartylife – You can also leave me a question or comment below! If you’ve tried this recipe, feel free to give it a star rating on the recipe above.

6 Comments

  • Amy R.
    April 2, 2023 at 11:31 AM

    4 stars
    This seems like a lot of batter for an 8×8 pan, but we’ll see how it goes!

    Reply
    • Rachel
      April 2, 2023 at 3:56 PM

      Hi, you could alternatively bake in a 9×13 pan, just alter the baking time. These bars are thick/fudgy.

      Reply
  • Shai
    July 26, 2023 at 12:16 AM

    Hi there, for the sugar can I just use brown sugar and does it have to be a mix of both, white and brown?

    Reply
    • Rachel
      July 26, 2023 at 8:05 AM

      Hello! I have not tried these just using brown sugar. The taste would be the same but using all brown sugar may change the texture and color a bit.

      Reply
  • Ash
    September 24, 2023 at 5:27 AM

    Aren’t these just cookie bars? Blondies use all brown sugar and no white sugar, that’s what differentiates them.

    Reply
    • Rachel
      October 2, 2023 at 8:01 AM

      You can call them what you would like!

      Reply

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