Peanut Butter S’mores Brownies

Peanut Butter S'mores Brownies

Peanut Butter S’mores Brownies are chewy, crunchy, and perfectly sweet. The best combination of two favorite desserts in one place! A perfect dessert recipe for summer!

This post is sponsored on behalf of Karo® Syrup to create this recipe. I only partner with brands that I use in my kitchen. All opinions expressed are 100% my own.

You all know how excited I am for it to officially be S’MORES SEASON!! I mean, I was born on National S’mores Day (August 10th), so I might have a little skin in the game. But S’mores season (aka summer) is upon us and I am READY!

I have made and shared all sorts of s’mores inspired treats here, but today, with a little help from Karo® Syrup, I’ve made the mother of all s’mores. Actually it might be the mother of all brownies as well…because I’ve combined two favorites and put my own over the top spin on them both!

The brownie is fudgy and chocolatey, and the no-bake s’mores topping is a combination of peanut butter and graham cereal sweetened with Karo® Syrup, for the perfect amount of balance. I truly believe this is the way to “bake a little extra” and kick off your summer!

Peanut Butter S'mores Brownies

How to Make These S’mores Brownies

The brownie base is easy and packed with chocolate. If you would like to save some time and skip the homemade brownie recipe, you can certainly use your favorite boxed-brownie mix. I won’t be mad.

Peanut Butter S'mores Brownies

Once the brownies are done baking, sprinkle some mini marshmallows on top…

Peanut Butter S'mores Brownies

Pop them under the broiler so they get all warm and toasty…

Peanut Butter S'mores Brownies

Prepare your s’mores topping with graham cereal…

Peanut Butter S'mores Brownies

And mix that with Karo® Syrup, peanut butter and a little granulated sugar to make a perfectly sweet, crunchy topping.

And oh, I can’t forget the chocolate…these ARE s’mores…

The mixture will be a gooey, delicious mess of perfection.

Peanut Butter S'mores Brownies

Spread that on top of the brownies…

Peanut Butter S'mores Brownies

Sprinkle a few more chocolate chips on top for prosperity, and let it set up!

Peanut Butter S'mores Brownies

The crunchiness and perfectly sweetend topping from using Karo® Syrup paired with the brownies is a match made in dessert heaven!

Peanut Butter S'mores Brownies

Hope you enjoy these as much as I did!

Peanut Butter S'mores Brownies

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Peanut Butter S’mores Brownies

  • Author: Cookies & Cups
  • Prep Time Prep Time: 15 minutes
  • Cook Time Cook Time: 50 mins
  • Total Time Total Time: 50 mins
  • Yield Yield: 24 large brownies 1x
  • Category Category: Brownies
  • Method Method: Oven
  • Cuisine Cuisine: American

Description:

Peanut Butter S’mores Brownies are chewy, crunchy, and perfectly sweet. The best combination of two favorite desserts in one place! A perfect dessert recipe for summer!


Ingredients:

Brownies

  • 1 cup semisweet chocolate chips
  • 1 cup milk chocolate chips
  • 1/2 cup butter
  • 3/4 cup light brown sugar
  • 3/4 cup granulated sugar
  • 4 eggs
  • 2 teaspoons vanilla
  • 1/2 teaspoon kosher salt
  • 1 cup flour
  • 3 cups mini marshmallows

Peanut Butter S’mores layer

  • 1 cup Karo® Syrup
  • 1 cup granulated sugar
  • 1 cup creamy peanut butter
  • 5 cups honey graham cereal
  • 1 cup semisweet chocolate chips, divided

Instructions

  1. Preheat the oven to 325°F. Line a 9×13- inch baking pan with foil, and coat with nonstick spray. Set aside.
  2. In a medium saucepan, combine the semisweet chips, milk chocolate chips, and butter and melt over medium-low heat, stirring constantly. Once the chocolate is melted, remove the pan from the heat immediately.
  3. Whisk both the sugars into the chocolate and add the eggs, one at a time, whisking constantly, until evenly combined. Next mix in the vanilla until smooth. Stir in the salt and flour until they’re evenly incorporated and pour the batter into the prepared pan.
  4. Bake the brownies for 35-40 minutes, until the center is set and a toothpick inserted 3 inches from the edge comes out clean. Remove from the oven, and turn the oven to broil.
  5. Immediately sprinkle the mini marshmallows on top of the brownies.
  6. Return the brownies back into the oven on the top shelf for 30 seconds – 1 minute, or until the marshmallows are lightly golden. Watch carefully as they will burn quickly.
  7. Allow the brownies to cool in the pan on a wire rack while you prepare the topping.

Peanut Butter S’mores Layer

  1. Cook the corn syrup and sugar together in a large saucepan over medium heat, stirring to dissolve the sugar. Bring the mixture to a boil. Remove from the heat. Stir in the peanut butter; mix well.
  2. Fold in the cereal, until coated. Then stir in3/4 cup of the semisweet chips. They will melt slightly, this is ok.
  3. Spread the mixture on top of the marshmallows, and sprinkle with the remaining chocolate chips.
  4. Allow the brownies to cool completely before cutting into bars.

Keywords:: brownie recipe, homemade brownies, how to make brownies, easy brownie recipe, best brownie recipe, how to make brownies

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Hi! I’m Shelly and I’m an addict. Of the buttercream sort. I started this site a few years ago as a way to justify my sugary, buttery obsession with desserts. It has worked out well for me so far, because as it turns out you guys all love sugary, buttery desserts too! It feels good to know you're not alone, doesn’t it?

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14 Comments
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Chelsea
April 1, 2020 11:23 am

I am a total beginner so this might be a dumb question, but do you mix everything together in the sauce pan? Or once the chocolate and butter are melted, do you mix everything in the kitchenaid mixer?

Iona
September 2, 2018 4:48 am

Hi, I’m in the UK and really want to make these but can’t get karo syrup. Is there anything I could substitute?

Deb
June 30, 2017 3:15 am

I love all your yummy recipes but I hate all the advertising they come with, especially the non food related ads. Hate them and I avoid printing your recipes if the ads are there. Then if I don’t print them then I don’t make the recipe. Simple

June 17, 2017 9:58 pm

Wow, these are dangerous! YUMMMM!

Jodie
June 16, 2017 2:51 pm

Is there a substitute for the Karo? I have literally everything else in my house …

Leah
June 14, 2017 3:13 pm

May I ask what the corn syrup is for??

June 14, 2017 9:51 am

Absolutely LOVE the peanut butter s’mores brownie combo!

Melissa
June 13, 2017 6:43 am

Holy cow these look amazing!!!!!! I would love to make them for a niece, however she is allergic to peanut butter, does anyone have any idea how I could make the topping without the peanut butter? So they would basically become s’more brownies?

June 12, 2017 10:42 am

Chewy, crunchy and sweet, three of my favorites in one. Love these!

June 12, 2017 9:41 am

YUM! These are amazing! Can’t wait to try them!

June 12, 2017 8:09 am

These are the brownies of my DREAMS! Is it wrong that I want to make these for dinner??

Shelly Hi! I’m Shelly and I’m an addict. Of the buttercream sort. I started this site a few years ago as a way to justify my sugary, buttery obsession with desserts. It has worked out well for me so far, because as it turns out you guys all love sugary, buttery desserts too! It feels good to know you're not alone, doesn’t it?

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