Peanut Butter Blondies with Decadent Fudge Frosting

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Is chocolate and peanut butter one of your favorite combinations?

It certainly is for me!

These Peanut Butter Blondies with Decadent Fudge Frosting are the perfect combination of a chewy peanut butter blondie with a creamy chocolate fudge frosting.

Need a sweet treat for your picnic or party? These easy Peanut Butter Blondies with Fudge Frosting feature chewy peanut butter chocolate chip blondies topped with a classic chocolate fudge frosting. These feature the best combination of peanut butter and chocolate and are easy homemade bars. Get baking with the recipe today!

What more could you want?

This recipe for Peanut Butter Brownies with Fudge Frosting was first published as a guest post, and I am now sharing it with you!

Need a sweet treat for your picnic or party? These easy Peanut Butter Blondies with Fudge Frosting feature chewy peanut butter chocolate chip blondies topped with a classic chocolate fudge frosting. These feature the best combination of peanut butter and chocolate and are easy homemade bars. Get baking with the recipe today!

While fruit desserts are common for the summer, I thought I would switch it up and stick with the classic combination of chocolate and peanut butter. This has always been one of my favorite combinations, so I am glad to be baking with it more!

Need a sweet treat for your picnic or party? These easy Peanut Butter Blondies with Fudge Frosting feature chewy peanut butter chocolate chip blondies topped with a classic chocolate fudge frosting. These feature the best combination of peanut butter and chocolate and are easy homemade bars. Get baking with the recipe today!

These blondies are very easy to make and can be made with or without the fudge frosting. The frosting brings them to the next level (just look at it!) and adds an extra chocolate component, which is never a bad thing!

Quick tip: This recipe uses salted peanut butter. This works well but if you prefer to use unsalted peanut butter, just add a pinch of salt with the flour.

Need a sweet treat for your picnic or party? These easy Peanut Butter Blondies with Fudge Frosting feature chewy peanut butter chocolate chip blondies topped with a classic chocolate fudge frosting. These feature the best combination of peanut butter and chocolate and are easy homemade bars. Get baking with the recipe today!

The blondies themselves are a one bowl recipe that can be put together in a pinch. Once cooled top them with my creamy, chocolate fudge frosting. Sprinkle with mini chocolate chips or sprinkles and this will be the perfect summer treat for any picnic or barbecue.

Quick tip: For best results when making the fudge frosting, allow the melted chocolate to cool slightly. It can still be warm to the touch. 

Need a sweet treat for your picnic or party? These easy Peanut Butter Blondies with Fudge Frosting feature chewy peanut butter chocolate chip blondies topped with a classic chocolate fudge frosting. These feature the best combination of peanut butter and chocolate and are easy homemade bars. Get baking with the recipe today!

I hope you enjoy making these chocolate peanut butter treats that are perfect for any summer occasion!

Need a sweet treat for your picnic or party? These easy Peanut Butter Blondies with Fudge Frosting feature chewy peanut butter chocolate chip blondies topped with a classic chocolate fudge frosting. These feature the best combination of peanut butter and chocolate and are easy homemade bars. Get baking with the recipe today!

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Peanut Butter Blondies with Decadent Fudge Frosting
Prep Time
15 mins
Cook Time
25 mins
Total Time
40 mins
 

These blondies feature chewy peanut butter chocolate chip blondies topped with a classic chocolate fudge frosting. They pair the indulgent combination of peanut butter and chocolate and are an easy, homemade recipe.

Servings: 16 blondies
Ingredients
Blondies
  • 1 stick (8 tablespoons) unsalted butter , softened
  • 1 cup light or dark brown sugar
  • 1 large egg
  • 1 teaspoon vanilla extract
  • 1/2 cup creamy salted peanut butter
  • 1 cup all-purpose flour
  • 3/4 cup chocolate chips
Fudge Frosting
  • 4 ounces semisweet chocolate
  • 1 stick (8 tablespoons) unsalted butter , softened
  • 3/4 cup powdered sugar
  • 1/2 teaspoon vanilla extract
  • 1 tablespoon milk or heavy cream
Instructions
Blondies
  1. Preheat oven to 350°F. Grease an 8-inch square baking pan or line it with aluminum foil.

  2. In a medium mixing bowl whisk the melted butter and brown sugar. Add the egg and whisk until incorporated. Then stir in vanilla extract and peanut butter, mixing until combined.

  3. Add flour and mix until just incorporated. Mix in chocolate chips, stirring until they are equally distributed.

  4. Bake in preheated oven for 20-25 min or until a toothpick is clean when inserted into the center of the pan. Cool on a wire rack.

Fudge Frosting
  1. In the microwave or on top of a double boiler melt the semisweet chocolate. Set the chocolate aside and let cool ~10-15 minutes.

  2. Once cooled, in the bowl of an electric mixer beat the butter and melted chocolate on medium speed. Add powdered sugar then milk and vanilla. Beat on low speed until the powdered sugar has been incorporated then increase speed to medium-high for 1-2 minutes until frosting is light and fluffy.

  3. Spread frosting on top of the cooled blondies. Sprinkle with mini chocolate chips or sprinkles if desired. Cut into 16 pieces and serve! These blondies are best served at room temperature but can be stored in the refrigerator for 3-5 days.

Recipe Notes
  • I used salted peanut butter, thus I excluded any salt from the recipe. This works well but if you prefer to use unsalted peanut butter, just add a pinch of salt with the flour.

  • For best results, allow the melted chocolate to cool until warm to the touch.

  • This blondie recipe is adapted from How to Cook Everything.

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118 thoughts on “Peanut Butter Blondies with Decadent Fudge Frosting

  1. YUm! I’m almost drooling right now. I can’t wait to try this at home. My daughter will surely love it.

  2. Ohhh hoo! Chocolates are my favorite and this fudge frosting is too fascinating. I’ve ate these peanut butter with fudge frosting in some restaurants. My favorite one.

  3. I think this might be one of the easiest to veganize of all your posts and I am DYING! I stopped buying peanut butter because I was eating it straight out of the jar… that fudge had me drooling! My husband hid the chocolate chips (yes, it was necessary) but I might have to tear the kitchen apart to find them!

    1. It sounds like these would be perfect for you! Since you are a chocolate lover, my recipe for Triple Chocolate Cookie Dough Truffles is easy to make vegan (just swap the butter and milk assuming you are using vegan chocolate). I hope you enjoy and would love to hear how you like the recipe!

  4. I so shouldn’t have clicked this post! I’ve been trying to eat healthier but these look soooooo amazing! I guess I can start again after I eat a batch or two…

  5. All of your recipes look amazing! I’m pretty sure my mouth started watering as I was reading. I’m always up for finding great new desserts to bake.

    1. Thank you, I am glad you enjoyed them! I love finding new desserts as well. I would love to hear which ones you’ve made!

  6. I’m adding this to my holiday baking list as I absolutely love chocolate and peanut butter together. They look delicious and I can’t wait to try them 🙂

    1. They definitely would be great for the holidays and will be a crowd favorite, at least in my experience!

    1. Thank you so much, I love hearing from people who have tried some recipes! Which ones have you tried?

  7. Oh my goodness! These sound like Heaven in a pan! I’m obsessed with everything peanut butter lately so these are going on my Pinterest page to make soon!

    1. These do not have all the chocolate of brownies so I hope you like them! I would love to hear what you think of the recipe!

  8. Omg these look sooo good! I think I’d have to try them without the fudge frosting first to make sure I wouldn’t get a sugar overload! lol

  9. Going to try this recipe for sure Sarah! It looks divine and I love everything out it from chocolate to one bowl. All super!

    1. Thank you, they are very easy and that definitely makes them better! I would love to hear how you like this recipe!

  10. These PB blondies look so scrumptious. And that frosting – wow! I need to bake up a large batch of these ASAP. Thanks so much for sharing this delicious treat!

    1. Thank you, I am glad the pictures have your mouth watering! I would love to hear how you like the recipe, you can always make a double batch if 16 pieces isn’t enough 🙂

  11. Ok, first of all, the second your page loaded, I was already drooling!!!! Like big time! I saw all these amazing pics of desserts and I went crazy! Now, peanut butter blondies with fudge frosting? Girl, I’m going to dessert heaven with this! 🙃 AH-MAZING!!!! Thanks so much for sharing this recipe! You’ve just made a girl with a serious sweet tooth very happy! 🙂

    1. Thank you so much, I am glad you enjoyed the pictures and desserts! Enjoy, I definitely have a large sweet tooth as well 🙂 I would love to hear how you like the recipe!

  12. Oh my goodness this looks like the perfect combination of everything. I’m a huge peanut butter fan and now that I live in Europe and there is none anywhere I’d love some of these lol.

    1. Yes definitely, unfortunately peanut butter isn’t so available in other parts of the world. But if you do get your hands on some, these are definitely for you!

    1. Thank you, that is a great questions! A blondie is like a brownie except that it usually has a vanilla or butterscotch flavor instead of chocolate. If you have any other questions, just let me know!

  13. This is so mouth watering. I love peanut butter but never cooked something with it. Probably this is the best recipe for peanut butter lovers!

  14. These look and sound so good! Salted peanut butter and chocolate sounds a great combination, I’ll definitely be trying this out myself.

  15. These look too delicious and easy. I pinned them for the next time I need to bring a dessert sonewhere! I know they’d be a hit.

  16. AUUGHHH! Why do I visit this deliciousness?? Now I want to run away from where I am and make these. Then I want to sit down with a cup of tea and eat them until I can’t move. Thank you for that. 🙂

  17. What a fabulous combination! The recipe sounds very easy so I am gonna have to try it ! Your photos makes me just eat it right now! Looks amazing ! 😀

  18. These look and sound amazing, a very decadent treat. Combination of peanut butter and chocolate is always a win in my books.

  19. This looks so rich and decadent, just like how I like my desserts! I don’t know which I love more, the blondies or the fudge luckily I can have them both 🙂 Yum!

    1. It’s my favorite way to have a dessert as well! The blondies and fudge on their own are delicious, but together they are the perfect combination 🙂

  20. These look so good! Chocolate & Peanut Butter is the ultimate combo! I think I might make these for my husband’s birthday next week! 🙂

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