Gooey White Chocolate Fluffernutter Cake Bars

These Gooey White Chocolate Fluffernutter Cake Bars are a sweet and delicious dessert bar filled with peanut butter, gooey marshmallow and white chocolate. They’re terrific!

Image of Gooey White Chocolate Fluffernutter Cake Bars

White Chocolate Fluffernutter Gooey Bars

Ahhh, summer is officially here which means more fun time to cook with the kids. My Gooey cake bars are so simple (not to mention ridiculously delish) and the kids absolutely love to get their hands dirty to help with this one.

My favorite part about these bars is the gooey fluffernutter topping, its almost caramel like consistency which makes for a perfect gooey treat. They travel well so they’re perfect for bake sales, family picnics and parties.

Whatcha waiting for, get baking! PS, if you can even believe it my kids are still in school! …no pics of them helping me until after this week, lol!

Image of Ingredients for Gooey White Chocolate Fluffernutter Cake Bars

How to Make Gooey Peanut Butter Cake Bars

Line up: Yellow cake mix, egg, butter, marshmallow creme, peanut butter, sweetened condensed milk and white chocolate chips.

Image of Pouring Cake Mix in a BowlAdd your cake mix to a large bowl.

Image of Adding Egg to Cake MixAdd a pretty little egg.

Image of Adding Butter to Cake Mix…and a softened stick of butter.

Image of Cake Mix Dough in a BowlMix, mix and mix. You can do this with your stand mixer or use your hands to get a dough like this.

Image of Cake Mix DoughPress into a 9×13 inch baking pan. I like lining with foil so after it cools, I can pull the whole sheet out and cut into perfect little squares. Do you like my Sally Hansen sticker nails?! Lol. I like them but do not like that they only last about 4 days 🙂  Cute though!

Image of Cake Bar Layer OnePress evenly throughout.Image of Making Fluffernutter CremeTime for the gooey fluffernutter topping. Place your peanut butter, marshmallow creme and sweetened condensed milk into a large bowl, mixing to combine. This is what turns caramel-like once baked. Mmmmm!Image of Fluffernutter CremePour it over your pressed crust. Definitely lick the spoon, it’s worth it 🙂

Image of White Chocolate ChipsPour  a nice bag of white chocolate chips over top and bake 350 degrees F. for 23-25 minutes. Let cool completely and….

Close-up Image of a Stack of Gooey White Chocolate Fluffernutter Cake BarsWhat you’ll find are these gooey bars of deliciousness! Perfect for any occasion, Enjoy friends!

Image of Gooey White Chocolate Fluffernutter Cake Bars Piled on a Plate

Close-up Image of Gooey White Chocolate Fluffernutter Cake Bars 

Gooey White Chocolate Fluffernutter Cake Bars

These Gooey White Chocolate Fluffernutter Cake Bars are a sweet and delicious dessert bar filled with peanut butter, gooey marshmallow and white chocolate. They're terrific!
Course: Dessert
Cuisine: American
Prep Time 10 minutes
Cook Time 24 minutes
Total Time 34 minutes
Servings: 12 bars
Calories: 570kcal
Author: Jenny
Print Pin

Equipment

  • Oven

Ingredients

  • 1 box yellow cake mix
  • 1 large egg
  • 8 tbsp unsalted butter softened
  • 1/2 cup creamy peanut butter
  • 1/2 cup marshmallow fluff
  • 14 oz can sweetened condensed milk
  • 12 oz bag white chocolate chips

Instructions

  • Place cake mix, egg, and butter into a large bowl. Mix until well combined, will be the consistency of thick cookie dough. I used my hands towards the ends. Press dough into prepared baking pan.
  • Place peanut butter, marshmallow creme and condensed milk into a large bowl and mix until well combined. Pour over crust then top with white chips.
  • Bake for 23-25 minutes, until cooked through. Center will seem somewhat jiggly, but will set up while cools.
  • Let cool completely, cut into squares and serve.

Nutrition

Calories: 570kcal | Carbohydrates: 77g | Protein: 9g | Fat: 27g | Saturated Fat: 14g | Cholesterol: 51mg | Sodium: 437mg | Potassium: 299mg | Fiber: 1g | Sugar: 58g | Vitamin A: 353IU | Vitamin C: 1mg | Calcium: 250mg | Iron: 1mg
Keywords: cake bars, cake mix recipe, dessert bars recipe, easy dessert recipe, marshmallow dessert, peanut butter bars recipe, peanut butter dessert

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Have a great rest of your week and weekend! Come back soon 🙂

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96 Responses
  1. Kristin

    Oh yum! these remind me of Paula Dean’s gooey butter cakes. Love the fluffernutter combo, great idea! I’ve tried the sally hansen nail strips too, I really like them I bought leopard print. Mine lasted over a week though.

  2. Becky

    Look amazing! Except that my son is deathly allergic to peanuts!! I’m still going to try them but using peanut-free almond butter. Any suggestions to make that successful? This will be my first recipe trying to substitute almond butter.

  3. Stacy

    Wrong. Wrong, wrong, wrong on so many levels. Yet they taste so right. *thanks* for making it so necessary to hit the gym a little bit harder today! 🙂 Yummy!!

  4. Amanda

    Girl, your talent simply amazes me!! These look absolutely incredible. And I love your cute sparkly nails! 🙂 xoxo

  5. Monica

    This one got my heart racing, it has all the things I love: cake, marshmallows, peanut butter, white chocolate…!!!

  6. Dana@TheSundaySweet

    Alright, this look so darn delicious! I’m all about gooey marshmallow peanut butter mixture. Might have to take this one camping next week for all the little ones running around 🙂

  7. Clare

    LOVE love love your nails and that cake! SUCH a bummer that your kids are still in school – what’s up with that? I got out almost two weeks ago!

  8. I Amy at TheSceneFromMe

    First off, I love your sparkly nail polish!
    And I want a pan of these bars right now to get rid of my aching sweet tooth!

  9. Hannah at FleurDeLicious

    My roommates and I used to make fluffernutter sandwiches in college all the time…they would love this! Can’t wait to make them!

  10. Heather of Kitchen Concoctions

    What a fun easy dessert! You do such yummy things with those cake mixes!

  11. Heather I.

    Your creativity will never cease to amaze me! Fluffernutter sammies are one of my favs, I can’t wait to make this cake mix version!

  12. Erin

    These look superb! I haven’t made anything fluffernutter-ish yet. Gotta start somewhere! P.S. I love your nailpolish.

  13. Chris @ TheKeenanCookBook

    Yum! Here is my “When I was younger” story 🙂

    My Dad is a huge fluffernutter fan. When I was a little boy he used to make them as a special dessert treat in the summer. He hasn’t made them in years. Maybe I’ll make them and surprise him.

  14. Sarah

    When I was younger, I would ONLY eat fluffernutter sandwiches for lunch… I love packing them to bring to work from time to time. These are adorable and will definitely be making their way into my baked-good-repitoire

  15. EHochstein

    The peanut butter looks gooey already? Is it the brand/type or did you heat it up somewhat to get to that consistency? Thank you! I’m going to give these a trial run today 🙂

  16. EHochstein

    This is exactly what I need for our daughter’s preschool graduation picnic. My daughter is allergic to chocolate. I was looking for a recipe using white chocolate which she loves. Thanks….it looks delicious!

  17. marla {family fresh cooking}

    Hi Jenny! love the bars and the sparkle nails! Let’s get together soon, I miss you 🙂

  18. Melanie

    I’ve heard so much about this mystical thing called “fluffernutter.” I can’t wait to try this!! Sounds like a great combination!

  19. Heather (Heather's Dish)

    LOVE your fancy nail polish! the sparkles are so cute…not to mention this cake bars sound insane!

  20. Liz (Little Bitty Bakes)

    Mmm, you sure know how to jazz up a cake mix, Jenny! These look great.

    School is still in session here in NY, too. I think this is their last week, though. Poor kids!

  21. Averie @ Love Veggies and Yoga

    Jenny..AMAZING!!! I love your desserts. Your creations are always brilliant!! You take common ingredients/items but prepare them in SUCH an ultra delicious way…seriously, the way your brain works is a beautiful thing 🙂

    And marshmallows, PB, powdered sugar, white choc chips….are some of my FAVE things to bake with.

    Love the pics and this recipe!!!

  22. Stephanie - Wasabimon

    Be still my beating heart. Such a simple dessert – I’m so saving this for when I need an emergency picnic dish!

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