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    Home » Recipes » Bars & Brownies

    Peanut Butter Blondie Bars

    Updated: April 30, 2020 by Sam Merritt • 28 Comments

    This post may contain affiliate links. As an Amazon Associate I earn from qualifying purchases. Please read my disclosure policy.
    Jump to Recipe

    Soft, chewy peanut butter flavored blondie bars are thick and chewy and chock full of peanut butter–then gently brushed with premium dark chocolate.

    Easy Peanut Butter Blondie Bars--brushed with dark chocolate

    Let’s get this over with, shall we?

    The workday, that is.  That last 8 hour stretch before the magical couple of days formally known as the weekend can begin.  Only 8 hours (hopefully less than that, by the time you’re reading this) separates you from freedom (granted you have the same schedule as me), and hopefully by the end of this post I’ve convinced you of the absolute necessity for you to immediately go home and make these peanut butter blondie bars.

    Why?  Because they are incredible, they are easy, they are simple to make and heavenly to consume.  Thick and chewy, chock-full-of dreamy creamy peanut butter and oh-so-artfully (or maybe not-so-much, let’s be honest) brushed with premium dark chocolate for that final, perfect flair. All the soft, chewiness of peanut butter cookies, no scooping required.

    Peanut Butter Blondie Bars--brushed with dark chocolate on parchment

    Maybe, if you’ll look closely you’ll notice the fine sprinkling of crushed sea salt scattered over the surfaces of these squares.  I ultimately omitted the sea salt from the final recipe; while I’m usually a fan, I felt that it didn’t add much to the peanut butter bars (which already have naturally salty undertones to them thanks to the peanut butter).

    Feel free to experiment with a sprinkle or two if you’d like, though.

    Now, why you should make these immediately:

    I hate to use the word moist (if only because I know so many people dislike it) but I don’t really know a way around it to properly convey the texture of these bars to you (“damp”, “sweaty”, “slightly wet”, all of these are significantly less appealing and none have quite the same connotation).  They are soft, definitively moist, heavy with peanut butter so that they hover right on the line of appearing underbaked (which generally tends to be the line that I strive for when making baked goods).

    Sam’s Tip

    Brush the tops with melted chocolate using a pastry brush!

    Peanut Butter Blondie Bars--brushed with dark chocolate
    Easy Peanut Butter Blondie Bars--brushed with dark chocolate

    They are a delicious way to enjoy peanut butter without making cookies, a twist on basic brownies, and they are, very, very easy.

    Happy Friday, I hope your weekend is care free and peanut-butter-y (um, unless you’re allergic, of course…!).

    More Recipes You Might Like:

    • Peanut Butter Pie
    • Peanut Butter Oatmeal Cookies
    • Flourless Peanut Butter Cookies
    • Peanut Butter Bars

    Enjoy!

    peanut butter blondies brushed with melted chocolate

    Peanut Butter Blondie Bars

    Soft, chewy peanut butter flavored blondie bars are thick and chewy and chock full of peanut butter–then gently brushed with premium dark chocolate.
    5 from 7 votes
    Print Pin Rate
    Prevent your screen from going dark
    Course: Dessert
    Cuisine: American
    Prep Time: 20 minutes minutes
    Cook Time: 25 minutes minutes
    Total Time: 45 minutes minutes
    Servings: 15 blondies
    Calories: 412kcal
    Author: Sam Merritt

    Ingredients

    • 1 cup (226 g) unsalted butter softened
    • 1 cup (265 g) creamy peanut butter
    • 1 cup (200 g) granulated sugar
    • 1 cup (200 g) light brown sugar firmly packed
    • 2 large eggs
    • 2 teaspoons vanilla extract
    • 2 ¾ cup (345 g) all-purpose flour
    • 1 teaspoon baking powder
    • ½ teaspoons table salt
    • 2 Tablespoons whole milk
    • 2 oz (57 g) premium dark chocolate melted (optional)

    Recommended Equipment

    • 13×9 baking pan (metal)

    Instructions

    • Preheat oven to 350F (175C) and line 13×9" metal baking pan with parchment paper. Set aside.
    • In a large mixing bowl, use an electric mixer to beat together butte, peanut butter, and sugars until smooth and creamy.
      1 cup (226 g) unsalted butter, 1 cup (265 g) creamy peanut butter, 1 cup (200 g) granulated sugar, 1 cup (200 g) light brown sugar
    • Add eggs and vanilla extract and stir well.
      2 large eggs, 2 teaspoons vanilla extract
    • In separate, medium-sized bowl, whisk together flour, baking powder, and salt.
      2 ¾ cup (345 g) all-purpose flour, 1 teaspoon baking powder, ½ teaspoons table salt
    • Gradually, on low speed, add flour mixture to peanut butter mixture, pausing occasionally to scrape down the sides of bowl.
    • Add milk and stir until combined.
      2 Tablespoons whole milk
    • Spread batter into prepared ban and bake on 350F for 25-28 minutes (toothpick inserted in center should come back mostly clean or with only a few moist crumbs)
    • Allow to cool completely, then slice and brush with melted chocolate, if desired.
      2 oz (57 g) premium dark chocolate

    Notes

    Storing
    Store in an airtight container at room temperature for up to 3 days. 
    Add-ins
    Feel free to stir in up to 1 ½ cups of your favorite add-ins like milk chocolate chips or peanut butter chocolate candy pieces!

    Nutrition

    Serving: 1blondie | Calories: 412kcal | Carbohydrates: 49g | Protein: 8g | Fat: 22g | Saturated Fat: 10g | Cholesterol: 55mg | Sodium: 134mg | Potassium: 221mg | Fiber: 2g | Sugar: 29g | Vitamin A: 410IU | Calcium: 54mg | Iron: 2mg

    Nutritional information is based on third-party calculations and should be considered an estimate only. Actual nutritional content will vary based upon brands used, measuring methods, cooking method, portion sizes, and more.

    Tried this recipe? Show me on Instagram!Mention @SugarSpun_Sam or tag #sugarspunrun!
    Oh-so-easy Peanut Butter Blondie Bars SugarSpunRun

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    Reader Interactions

    Comments

    1. Bruce

      May 25, 2021 at 3:15 pm

      5 stars
      I’d merged two of your great recipes to make Peanut Butter Blondies Bites with Ganache. I left out the milk and baked them like your brownie bites. 1/2 recipe makes 27, or 24 with a generous amount left for licking the bowl. 350°F for 18 minutes, like the brownie bites. I have pictures, but don’t think there’s a way to add them here.

      Reply
    2. Nan

      August 29, 2020 at 6:19 pm

      Hi! Hope you are having a great day 🙂 I was wondering if I half this recipe, what size pan should I bake it in?

      Reply
      • Sam

        August 29, 2020 at 9:46 pm

        Hi Nan! I believe an 8 inch square pan will work here. 🙂

        Reply
        • Nan

          August 29, 2020 at 10:33 pm

          Thanks so much for your quick responses! I have another question- sorry I have so many questions lol- can I sub the brown sugar for white sugar mixed with pure maple syrup or maybe just plain white sugar? I love brown sugar in recipes but I use it so much that I keep running out of it 🙂

        • Sam

          August 31, 2020 at 5:03 pm

          As long as you have the ratio correct for the mix I don’t see any reason it wouldn’t work. 🙂

      • Bruce

        August 15, 2024 at 6:23 pm

        Hey, Nan,
        Sam has a recipe for making brown sugar from white sugar and molasses. A jar of molasses keeps forever, so just keep that on hand for when you run out of brown sugar.
        https://getbonusform.info/how-to-make-brown-sugar/%3C/a%3E%3C/p%3E

        Reply
    3. Bruce

      April 24, 2020 at 9:20 pm

      5 stars
      I’m pre-rating it 5 stars. I have a half batch in the oven now, since it’s just me. This is easily done by hand with a wooden spoon, if you would like. I’m sure these are as good as the Snicker Doodle Blondies. I did mistake my 1/2 tablespoon for a 1/2 tsp for the baking soda, so mine will be too puffy, but that will be fine. I’m sure I’ll make another half batch soon!

      Reply
      • Sam

        April 24, 2020 at 9:22 pm

        Thank you so much Bruce! Try not to eat too many! 😉

        Reply
      • Shifa

        June 29, 2021 at 2:14 am

        Hi, my one is a bit cracked on the surface. Why is that??

        Reply
        • Sam

          June 30, 2021 at 3:01 pm

          I’m not really sure but it shouldn’t be an issue. Actually many people strive to achieve a slight crackle on top. 🙂

    4. Ruth

      December 31, 2019 at 10:11 pm

      Hoping these come out okay. I’m so used to your recipes having weights this really threw me off lol.

      Reply
      • Sam

        January 01, 2020 at 10:23 am

        I hope you love them, Ruth! This is an older recipe from before I used weights, I’ll have to get it updated with weights soon!

        Reply
    5. Beeta @ Mon Petit Four

      September 16, 2015 at 12:57 am

      Oh my gosh! How heavenly are these! A thick peanut butter bar with dark chocolate brushed on top? Count me in! This is so the thing I would rush to the kitchen to after work just to bake up and devour as my time-off treat <3

      Reply
    6. Tonya

      September 14, 2015 at 10:02 am

      Creative Sam! I love the brush effect! My all time favorite combination!

      Reply
    7. Anu-My Ginger Garlic Kitchen

      September 14, 2015 at 7:19 am

      Oh wow! These blondie bars look droolicious, Sam. Can’t wait to try.

      Reply
    8. Adina

      September 14, 2015 at 2:49 am

      The bars look delicious, I would love to try them. What is sweet cream butter? I suppose I can use normal butter instead?

      Reply
      • Sam

        September 14, 2015 at 8:04 am

        Thanks Adina! And yes, just regular butter would be right 🙂

        Reply
    9. Ana | Espresso My Kitchen

      September 11, 2015 at 9:43 pm

      These look so yummy! and loving the chocolate brushed on top! These are a perfect treat.

      Happy Weekend! 🙂

      Reply
    10. Nagi@RecipeTinEats

      September 11, 2015 at 4:42 pm

      5 stars
      I know you might not believe me but I’ve never made a bond bar before in my life. THIS is the one I am trying! 🙂 Pinning! Happy weekend Sam!

      Reply
    11. Dani @ Dani California Cooks

      September 11, 2015 at 2:59 pm

      I love that these are brushed with dark chocolate. I mean, that’s when food really becomes art!! So beautiful and it looks delicious to boot.

      Reply
    12. Cheyanne @ No Spoon Necessary

      September 11, 2015 at 1:03 pm

      5 stars
      I am totally with you girl, bring on the weekend! AND bring on these delicious blondies!! I am ALL about the blondies (and not just because I am one!)! 😉 They are my favorite! But add some peanut butter? Heck yes!!! Loves it! Pinned! Cheers, girlfriend! To a fabulous weekend!

      Reply
    13. Marsha @ Marsha's Baking Addiction

      September 11, 2015 at 11:54 am

      Now these are my kind of blondies – peanut butter and chocolate! Yum!

      Reply
    14. Medha @ Whisk & Shout

      September 11, 2015 at 10:11 am

      Love the chocolate on top and the chewy deliciousness that are these blondies! Pinning 🙂

      Reply
    15. Amanda

      September 11, 2015 at 9:48 am

      These blondies look great! And I love the chocolate brushes over the top. Looks very snazzy!

      Reply
    Newer Comments »
    5 from 7 votes (3 ratings without comment)

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