The swirls of marshmallow cream and fudge topping inside these Peanut Butter S'mores Blondies will satisfy all your chocolate and peanut butter dreams. Great blonde brownie recipe to make for summer picnics and parties.
I wish that I could FORGET about my peanut butter and chocolate love affair!!! I have a food confession for you! (hangs head in shame)
The other night I was working on editing some new photos when I heard the leftover Dark Chocolate Buttercream Frosting in the fridge calling out to me in a sweet sing songy voice. "Please come dip a spoon into my yummy, chocolatey goodness!"
What? You have never had chocolate frosting talk to you???? I'm guessing you've never heard from Chewy Chocolate Brownie Cookies either. I'm probably the strange one here.
Anyway, I walked right to the kitchen, got out a spoon and took out a big spoonful. Then I turned around and the pantry door was wide open!
It was like angels singing or something, and there was a glow of light coming from the peanut butter and marshmallow cream jars!!!
I lost all self control and went crazy!!! Let me tell you that a spoonful of fudge frosting, peanut butter, and marshmallow cream is HEAVEN on a spoon!
All I could dream about was somehow pairing those flavors into some sort of delicious goodness! These blonde brownies are a result of my lack of self control, so I guess some good came out it.
Plus, I got to send them away to a dinner right away so that I couldn't stuff my face again.
How to Make Peanut Butter S'mores Bars
- Beat the butter, sugar, and peanut butter until creamy. (full recipe at bottom of post)
- Add eggs and vanilla and beat again.
- Stir together the flour, baking powder, salt, and graham crumbs.
- Slowly mix into the wet ingredients. Stir in chocolate chips.
- Spread half the batter in a greased pan.
- Drop spoonfuls of marshmallow and hot fudge over the top and spread out.
- Drop the rest of the batter by spoonfuls over the top and spread out with a spatula.
- Sprinkle with more chocolate chips and bake.
Is there a nut allergy in your family? Make these S'mores Swirled Blondies instead.
More Blonde Brownie Recipes
- Loaded Blonde Brownies
- M&M Blonde Brownies
- Banana Nutella Blonde Brownies
- Marshmallow Reese's Blonde Brownies
- Monster Cookie Blonde Brownies
- Whatchamacallit Blonde Brownies
Recipe

Peanut Butter S'mores Blondies
The swirls of marshmallow cream and fudge topping inside these Peanut Butter S'mores Blondies will satisfy all your chocolate and peanut butter dreams. Great blonde brownie recipe to make for summer picnics and parties.
Ingredients
- ½ cup unsalted butter, softened
- 1 cup brown sugar
- ½ cup creamy peanut butter
- 2 large eggs
- 1 teaspoon vanilla extract
- 2 teaspoons baking powder
- ½ teaspoon salt
- 1 ½ cups all purpose flour
- ½ cup graham cracker crumbs
- 1 ¼ cups chocolate chips, divided
- 1 cup marshmallow cream
- ½ cup hot fudge ice cream topping
Instructions
- Preheat oven to 350 degrees. Spray a 9x13 pan with nonstick spray.
- Beat the butter and sugar until creamy. Add the peanut butter, eggs, and vanilla and beat again.
- Stir together the baking powder, salt, flour, and graham cracker crumbs. Slowly add to the butter mixture until a soft dough forms. Stir in ¾ cup chocolate chips.
- Using a flat spatula spread half the batter in a greased 9x13 baking pan.
- Drop spoonfuls of marshmallow cream and hot fudge over the top of the batter in the pan. Swirl very gently with a knife.
- Drop the remaining dough over the top. Spread it out covering as much of the marshmallow and fudge as possible.
- Sprinkle with the remaining chocolate chips. Bake 28-30 minutes. Dough will look wobbly and undone, but it will set up as it cools.
- Remove and cool completely before cutting into squares. Store in a tightly sealed container.
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Nutrition Information:
Yield: 24 Serving Size: 1Amount Per Serving: Calories: 201Total Fat: 10gSaturated Fat: 5gTrans Fat: 0gUnsaturated Fat: 4gCholesterol: 27mgSodium: 133mgCarbohydrates: 26gFiber: 1gSugar: 16gProtein: 3g
Nutrition facts are an estimate and are not guaranteed to be accurate. If you need special diet advice, please see a registered dietician.

The post for Peanut Butter S'mores Bars was first published in June 2011. The pictures were updated in July 2015, and the post was updated and republished in May 2020.
Moquelish says
WOW!!! That's pretty much all I have to say. I will have to try these very very soon.
Lisa says
Your family must love you because you always make the best-looking, yummy desserts!
AllieMakes! says
WOW! Those look AMAZING! And I have the same errand each month that makes a hiccup in the month, lol!
Thanks for linking up to Making It With Allie! I can't wait to see what you have for next week!
Amy @ dwell in the season says
YUM! These look amazing! I'll have to try them 🙂
-Amy
Susan @ Busy Home Adventures says
These look so scrumptious! Love, love, love the idea. I may just make these tonight. Off to check the pantry... 🙂
Allison {A Glimpse Inside} says
Mmmmmm, Mmmmmm, Mmmmmm, Mmmmmm, Mmmmm! Those look good! Thanks for linking this up this week!
PS- Love your new header!
Pretty. Good. Food. says
I am seeing a ton of s'mores-related recipes lately. I feel like the blogging world knows I'm on a diet!!! 🙂 This sounds like perfection.
Diane says
Oh wow, this looks soooo yummy! Thanks for sharing the recipe.
Thanks for visiting me over at Pittypat Paperie. Hope you will drop by again sometimes.
Ashley says
o my heck so delicious looking....love love love your blog....such cute things!
Handy Man, Crafty Woman says
Stop it; I'm gaining weight just looking at this blog! lol Thanks so much for linking this up to our Wicked Awesome Wednesday party!
Amanda @ Serenity Now says
You are just plain amazing! Those look delicious!!!
PartyMom says
This looks so good, I think I just gained five pounds through my eyes!
Di in Indiana says
I gained a pound just reading the recipe! I love peanut butter, chocolate, and marshmallow cream!! I can't wait to taste these!!
Laina says
yummy! This looks so delicious!
idesign says
this is my kind of blondie!
Jackie
Amanda-The Sweet Details says
oh these look wonderful!!
Just wanted to let you know I changed my blog url from eating in winnipeg to http://thesweetdetail.blogspot.com/ hope to have you come over there and follow me there 🙂
Aimee says
Oh my, that looks fantastic! Bookmarking this one for sure!
Aimee
Inside a British Mum's Kitchen says
Oh my goodness - these look amazing - my girls would wipe them out in a heartbeat!
Mary
Mandy says
Oh heavenly. You need to link this to my TTT. You just must.
The Miller Five says
Get out! You totally married my two favorite things. Peanut butter and smores. OMG. I truly have died and gone to heaven. Diet? What diet?
I do the same thing when I got o my husband's office. There is one road that I always second guess myself. Problem is, if I miss the road, I have to backtrack over a mile. How often to I miss the road? Every.single.time. Sigh.