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    Home » Recipes » Desserts

    Peanut Butter Brownies

    Posted: May 12, 2017 · Updated: May 23, 2024 by Sara · This post may contain affiliate links. · As an Amazon Associate I earn from qualifying purchases.

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    Peanut Butter Brownies - For the peanut butter lovers! Moist, cake-like peanut butter brownies topped with light and fluffy peanut butter frosting!

    Peanut Butter Brownies – For the peanut butter lovers! Moist, cake-like peanut butter brownies topped with light and fluffy peanut butter frosting!

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    You've heard me say many times before, we're a chocolate and peanut butter family. But sometimes, we're just all about the peanut butter. And I know you are, too. So many of you have tried these delicious peanut butter cookies. They really are blue ribbon quality. If you haven't tried them, just make them right along with these peanut butter brownies and call it a good day.

    These brownies have zero chocolate. They're pure bred peanut butter brownies. Our cousin Sue, who shared this yummy Muenster Chicken recipe with me, also sent me this brownie recipe. Of course she did. Everything Sue recommends is completely and utterly delicious.

    Peanut Butter Brownies - For the peanut butter lovers! Moist, cake-like peanut butter brownies topped with light and fluffy peanut butter frosting!

    I dare you not to scoop spoonfuls of this frosting out of the bowl and into your mouth when you're mixing it up. It's fluffy - almost like mousse - but creamy, too. Get. In. My. Mouth.

    Peanut Butter Brownies - For the peanut butter lovers! Moist, cake-like peanut butter brownies topped with light and fluffy peanut butter frosting!

    And when you're going all in on the peanut butter, why not sprinkle some Reese's Pieces on top? It was meant to be. They add a pop of color, too.

    Peanut Butter Brownies - For the peanut butter lovers! Moist, cake-like peanut butter brownies topped with light and fluffy peanut butter frosting!

    The brownies, themselves, are a bit cake-like vs. fudgy. I love that they stayed soft all week long as we ate our way through the pan - cutting out little pieces of heaven throughout the day. Often, that's how we eat our brownies around here. A little at a time. That way you don't feel as guilty. 😉

    Peanut Butter Brownies - For the peanut butter lovers! Moist, cake-like peanut butter brownies topped with light and fluffy peanut butter frosting!

    I'm not here to make you feel guilty. Your friends, family and neighbors will be more than willing to take a couple of these brownies off your hands. I can pretty much guarantee it.

    Peanut Butter Brownies - For the peanut butter lovers! Moist, cake-like peanut butter brownies topped with light and fluffy peanut butter frosting!

    Go ahead and indulge a little. Heck, if you're not a huge brownie fan, just make the frosting. It will totally be worth it. That frosting. I'm a bit obsessed.

    Peanut Butter Brownies - For the peanut butter lovers! Moist, cake-like peanut butter brownies topped with light and fluffy peanut butter frosting!

    So stop drooling over these babies and dig in. I literally had all of the ingredients I needed for these brownies on-hand minus the heavy whipping cream. THAT, I needed to run to the store for. Everything else the recipe calls for is pretty standard.

    A typical Bitz & Giggles recipe. Quick, easy, delicious and uses ingredients that you're familiar with and can pronounce. Classic. Timeless. I'll shut up now. Just make these brownies. And leave my cousin, Sue, a message in the comments on what you thought of them. Enjoy!

    Peanut Butter Brownies – For the peanut butter lovers! Moist, cake-like peanut butter brownies topped with light and fluffy peanut butter frosting!
    For the peanut butter lovers! Moist, cake-like peanut butter brownies topped with light and fluffy peanut butter frosting!
    Peanut Butter Brownies - For the peanut butter lovers! Moist, cake-like peanut butter brownies topped with light and fluffy peanut butter frosting!

    SaveSave

    For the peanut butter lovers! Moist, cake-like peanut butter brownies topped with light and fluffy peanut butter frosting!

    Peanut Butter Brownies

    For the peanut butter lovers! Moist, cake-like peanut butter brownies topped with light and fluffy peanut butter frosting!
    4.50 from 6 votes
    Print Pin Rate
    Prep Time: 20 minutes mins
    Cook Time: 30 minutes mins
    Servings: 16
    Calories: 1317kcal
    Author: Sara
    adjust servings: 16

    Ingredients

    For the Brownies

    • 1 cup creamy peanut butter
    • ½ cup butter (softened)
    • 2 cups brown sugar
    • 3 eggs (beaten)
    • 1 teaspoon vanilla extract
    • 1 cup flour
    • ½ teaspoon salt
    • ½ cup Reese's Pieces candies

    For the Frosting

    • 2 cups creamy peanut butter
    • 1 cup butter
    • 1 teaspoon vanilla extract
    • ⅛ teaspoon salt
    • 4 tablespoons heavy whipping cream
    • 2 cups powdered sugar

    Instructions

    For the Brownies

    • Preheat oven to 350 degrees Fahrenheit.
    • In a large bowl, blend together the peanut butter and butter.
    • Beat in brown sugar, eggs and vanilla.
    • Add flour and salt.
    • Spread into a greased 13x9 inch baking pan.
    • Bake for 30-35 minutes.
    • Cool in pan and frost.
    • Sprinkle Reese's Pieces on top of brownies.

    For the Frosting

    • Blend peanut butter and margarine until fluffy.
    • Blend in remaining ingredients until smooth.
    • Frost cooled brownies.

    Notes

    1. Creamy Peanut Butter: Opt for creamy peanut butter in both the brownie batter and frosting for a smooth texture. Creamy peanut butter blends seamlessly into the batter and frosting, ensuring even distribution of flavor and avoiding any clumps or pockets of peanut butter.
    2. Even Baking: To ensure evenly baked brownies, spread the batter into the greased pan evenly, smoothing out the top with a spatula. This helps the brownies bake uniformly, preventing any undercooked or overcooked spots. Rotate the pan halfway through baking for even browning.
    3. Frosting Consistency: When making the frosting, gradually add the powdered sugar to achieve the desired consistency. If the frosting is too thick, add a little more heavy whipping cream, a tablespoon at a time, until it reaches a spreadable consistency. Conversely, if the frosting is too thin, add more powdered sugar until it thickens to your liking. Adjusting the consistency ensures that the frosting spreads smoothly over the cooled brownies without being too thick or too runny.

    Nutrition

    Calories: 1317kcal | Carbohydrates: 118g | Protein: 26g | Fat: 88g | Saturated Fat: 34g | Polyunsaturated Fat: 14g | Monounsaturated Fat: 35g | Trans Fat: 1g | Cholesterol: 161mg | Sodium: 912mg | Potassium: 678mg | Fiber: 5g | Sugar: 93g | Vitamin A: 1263IU | Vitamin C: 0.04mg | Calcium: 120mg | Iron: 3mg
    Tried this Recipe? Pin it for Later!Mention @BitzNGiggles or tag #bitzngiggles!
    246979 shares

    Reader Interactions

    Comments

    1. Kimberly Ann

      August 30, 2023 at 12:42 pm

      5 stars
      Absolutely love these!!

      Reply
    2. Crystal

      October 17, 2022 at 11:34 am

      I'm quite interested in making this recipe......I need to know what type of flour to use, however. All purpose or self rising?

      Reply
      • Sara

        October 18, 2022 at 2:37 pm

        All purpose!

        Reply
        • Anonymous

          July 04, 2023 at 11:06 am

          Can you use half and half instead of heavy whip cream

          Reply
          • Sara

            July 05, 2023 at 10:54 am

            Yes, that should work!

            Reply
    3. Kellie

      June 16, 2022 at 5:55 pm

      4 stars
      Just made them, the brownie part was delicious. Unfortunately for the frosting- not sure what I did but ALL we taste is Peanut Butter. I also had to double to amount of heavy cream because it was too thick. Next time I’ll try a quarter amount of peanut butter and try from there. Thanks for the recipe 🙂

      Reply
    4. Elisa

      July 13, 2019 at 4:14 pm

      How do you store then after making them do they go in to the frig or just put lid on pan and leave it out?

      Reply
      • Sara

        July 23, 2019 at 10:19 pm

        I've done both. They will keep a bit longer in the fridge. If you choose to store them in the fridge, just pull them out 10-15 minutes before enjoying them so they warm up a bit - or put them in the microwave for just a few seconds!

        Reply
      • Katie

        October 17, 2019 at 10:59 am

        What size pan

        ???

        Reply
    5. Ingrid

      March 13, 2019 at 9:01 am

      5 stars
      These are the best brownies I have ever made. I made them for my daughter and her friends for their spring break trip to Florida, they're driving back today and have requested I make more! I never want chocolate brownies again! Thank you so much for this recipe!

      Reply
      • Sara

        March 15, 2019 at 1:52 pm

        I'm so glad you like them! Sometimes it's nice to have something else to go along with your chocolate! 😉

        Reply
    6. Ruth

      December 06, 2018 at 10:08 am

      I halved the sugar (2 c br sugar for 1 c flour?). I was shocked at 2 c of PB for frosting. So I made icing from 4x sugar, a bit of milk, and about 1 T of PB. Everybody loved this but thought it was too rich. Can't imagine If I'd made it like it called for. This will replace my recipe for peanut butter bars and I will keep the changes I made. Thank you! The Reese's Pieces is a great idea!

      Reply
    7. Sue Carreras

      March 27, 2018 at 10:05 pm

      5 stars
      I love baking brownies and cakes. Well, all kinds of sweets really! These are the best brownies I have ever had. I had to share or I would have eaten all of them myself. The icing is amazing, like whipped cream. Will definitely make them again. Thank you for sharing.

      Reply
      • Sara

        April 03, 2018 at 8:31 pm

        Sue, I'm so glad you enjoyed the brownies! I agree, that icing is incredible!

        Reply
    8. J

      January 17, 2018 at 10:37 pm

      Waaaayyyyy to much butter. Sorry didn't enjoy them. Did have to throw them out. PB anything is my favorite usually. Unfortunate idk what happened but... wouldn't make again.

      Reply
      • Sara

        January 18, 2018 at 9:27 pm

        I'm so sorry these didn't work out for you. Was it the brownie or the frosting you didn't like?

        Reply
    9. Robin

      August 08, 2017 at 2:23 pm

      3 stars
      They have a great peanut butter taste but I wouldn't cook them 30 mins. I cooked for that long and they came out hard. The frosting is a little over the top for me but sti goid.

      Reply
      • Sara

        August 08, 2017 at 10:20 pm

        Ovens can vary. It sounds like you have timing figured out for next time. I'm glad you enjoyed the frosting too!

        Reply
    10. Brandie

      July 30, 2017 at 5:02 am

      My brownies looked great, when i pulled them out of the oven! As I mixed the frosting up, (as directed), it started to seem something was a little off. Are the measurements correct? Mine didn't turn out that light in color, or texture. It seemed to be an awful lot of frosting! Not the yummy, light, fluffy, frosting, but a thick,separating, greasy frosting that almost killed my mixer! What did I do wrong? So sad?

      Reply
      • Sara

        August 01, 2017 at 8:56 pm

        I'm so sad for you! The measurements are correct, Brandie. Maybe give it another go and see if it happens again? My frosting has never turned out "greasy" so I'm not quite sure what could have happened.

        Reply
        • Cousin Sue

          August 01, 2017 at 11:30 pm

          I agree! The frosting was very light and fluffy for me, too! I'm not sure what would have made it a "greasy mess" or make your mixer work overtime!

          Reply
    11. Pat

      June 21, 2017 at 12:25 pm

      I am sorry to say I would never be able to make this recipe.
      I would probably eat the WHOLE pan!
      Guess I'll have to wait to have company! They sound amazing!

      Reply
    12. Cousin Sue

      May 12, 2017 at 7:37 am

      5 stars
      OMG, Sara, this is too funny! I received this recipe from you in my inbox this morning. I thought: "WOW... I have to make those brownies!" When I clicked on the recipe I realized it was one I had shared with you. That is hilarious! The trouble is, Cousin Bob is now going to hound me all day! He told me I haven't baked anything for a while and he needs sweets! Guess what I will be doing this weekend?

      Reply
      • Sara

        May 15, 2017 at 1:17 pm

        Yes, Sue! Make those brownies for Bob! Thanks for sharing the recipe with me. We REALLY enjoyed these delicious treats!

        Reply
      • susan

        May 24, 2020 at 12:38 pm

        I'm alittle confused...do you put the candies in the batter before you bake them & add more on the frosting later, or just on top of the frosting? Step 8 is with the brownie recipe. Just not sure if I need to put some in the batter. Anxious to put them in the oven!

        Reply
    4.50 from 6 votes

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    Sara Zenner, blogger at Bitz N Giggles

    welcome!

    Hey, I’m Sara!

     Born and raised in Wisconsin, where family and fun are at the heart of it all - I inherited a deep appreciation for home cooking and family traditions. I’m all about quick and easy recipes, tidying up, and laid back “up north” living.

    Read more!

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