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    Home » Recipes » Sweets

    S'mores Brownies

    August 10, 2020 by Chenée Lewis

    1.4K shares
    Homemade S'mores Brownies Recipe with Marshmallow Fluff | Chenée Today

    This s'mores brownies recipe with graham crackers is the best! Layered s'mored brownies with marshmallow fluff and cocoa powder make the perfect fudgy, gooey treat!

    JUMP TO RECIPE RECIPE VIDEO PIN FOR LATER SAVE THIS RECIPE SAVED!
    Homemade S'mores Brownies Recipe with Marshmallow Fluff | Chenée Today

    *This post contains affiliate links — as an Amazon Associate I earn from qualifying purchases. Please see my disclosure for details*.

    And if you love the summery flavors in these brownies, check out my Peach Cherry Galette, my Cast Iron Pineapple Upside Down Cake, and my Air Fryer Naan Pizza!

    Jump to:
    • Layered S'mores Brownies Recipe with Graham Crackers
    • S'mores Brownies with Marshmallow Fluff
    • Ingredients
    • Equipment
    • Tips for the best s'mores brownies
    • Related Recipes
    • 📖 Recipe
    • 💬 Comments

    Layered S'mores Brownies Recipe with Graham Crackers

    I'm so excited to share these with you today! We all know that s'mores are the ultimate summertime snack. They're perfect for hanging around fire and spending treasured time with friends and family, and they're easy and messy enough for kids to LOVE!

    The traditional s'mores recipe is simple: Graham cracker, chocolate, and toasted marshmallows. And who am I to mess with tradition?? That's why this s'mores brownies recipe has all the same elements: a buttery graham cracker crust, a fudge brownie layer, and a toasted marshmallow fluff topping that is so gooey and amazing! And for another amazing s'mores treat, try this s'mores pie!

    S'mores Brownies with Marshmallow Fluff

    There are lots of recipes for s'mores desserts out there, but these s'mores brownies are the BEST! They're based on my triple-chocolate pecan brownie recipe and the graham cracker crust from my lemon icebox pie, two of my best-love recipes on this site!

    And because I'm all about the easy shortcuts to recipe perfection, the topping for these s'mores brownies is good old store-bought marshmallow fluff!

    Ingredients

    Here's what you'll need to make these amazing s'mores brownies:

    • graham cracker crumbs -- to make this recipe even easier, I used the store-bought crumbs
    • salted butter - for both the graham cracker crust and the brownie batter
    • dark brown sugar - to add sweetness and caramely richness at the same time
    • granulated white sugar - adds more sweetness
    • vanilla extract - perfect complement to the chocolate flavor!
    • eggs - to give structure to the brownie layer
    • cocoa powder - the source of the brownies' rich chocolate flavor! And if you love chocolatey brownies, you've got to try my Brownies with Cream Cheese Frosting!
    • all-purpose flour - adds a little softness to these fudgy brownies
    • salt - to bring out all these flavors and cut the sweetness a bit
    • semisweet chocolate chips - to add the unmistakeable chocolate layer that s'mores are known for!
    Homemade S'mores Brownies Recipe with Marshmallow Fluff | Chenée Today

    Equipment

    Once you've got your ingredients together, all you'll need next is to gather your tools. I use a 9x9 baking pan for these brownies, but if you have a springform pan or a high-sided 8x8 pan, those could work too. Let me know in the comments below what you used!

    I would also recommend aluminum foil to line your pan, and an offset spatula to spread your marshmallow fluff. And if you love marshmallows, try my Chocolate Chip and Marshmallow Cookies!

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    Tips for the best s'mores brownies

    Adding Eggs

     This smores brownie recipe is based on my Triple-Chocolate Pecan Brownies, but only uses 2 eggs to make a fudgier, denser brownie layer and make a little extra space in the pan for our marshmallow layer.  If you prefer a texture that's slightly more cakey, add in the third egg! And for another yummy brownie recipe, try my 2 Bite Brownies! And if you're a chocolate lover, check out my Hot Chocolate Mug Cake!

    Also, as a quick and easy alternative to the brownie recipe altogether, you can choose to swap in your favorite brownie box mix, prepared according to the instructions on the package!

    Spreading and slicing marshmallow fluff

    I would suggest having a damp cloth on hand to wipe down your offset spatula each time you spread your marshmallow fluff.  It makes it easier to spread it neatly without getting it everywhere! And the same goes for when you slice your brownies to serve -- be sure to wipe your knife with a damp cloth between each cut!

    Broiler safety

    Be sure to watch the pan constantly while using the broiler.  Marshmallow can easily catch fire, so place your pan on a center rack so that it's far enough away from the heat source. Once you see the marshmallows start to smoke, it's time to take them out! In general, use an abundance of caution anytime you're using the broiler.

    Related Recipes

    I'm always sharing fun, summertime recipes, but the best recipes are the ones like these smores brownies that are perfect all year round! One of those that I love is my brown butter peach tart, which can be made with frozen peaches, so you can enjoy it any time of year!

    And if you love brownies, try my Mini Egg Brownies, my Dairy Free Brownies, my Biscoff Brownies, or my Matcha Brownies! Chocolate lovers will definitely want to check out my Matilda's Chocolate Cake!

    I also love my pineapple pecan cheesecake bars with a brown butter coconut icing! That name is a mouthful, and so are these decadent dessert bars! I made these for a family bake-off (and I won, of course). Try them today!

    brown butter peach tart
    Brown Butter Peach Tart

    And if you love sprinkles, check out my Birthday Rice Krispie Treats!

    📖 Recipe

    Homemade S'mores Brownies Recipe with Marshmallow Fluff | Chenée Today

    S'mores Brownies

    5 from 4 votes
    Print Pin Recipe Rate Recipe Save RecipeSaved!
    This s'mores brownie recipe is the best smores dessert! Layers of buttery graham cracker crust, fudgy brownies, smooth chocolate, and toasted, gooey marshmallow fluff!
    Prep Time: 15 minutes minutes
    Cook Time: 30 minutes minutes
    Cooling Time: 2 hours hours
    Total Time: 2 hours hours 45 minutes minutes
    Course: Dessert, Snack
    Cuisine :American
    Servings: 16 brownies
    Recipe Source: Chenée Lewis

    Equipment you may need

    • 9x9 baking pan
    • offset spatula
    • whisk
    • rubber spatula
    • heavy-duty aluminum foil
    • measuring cups and spoons
    • mixing bowls
    • hand mixer
    • food scale

    Ingredients

    Graham Cracker Crust

    • cooking spray
    • 1½ cups graham cracker crumbs
    • 6 tablespoon salted butter - melted
    • ¼ cup dark brown sugar

    Fudge Brownie Layer

    • 1 cup salted butter - melted
    • 2 large eggs - beaten
    • 2 teaspoon pure vanilla extract
    • 1 cup granulated sugar
    • ½ cup dark brown sugar - packed
    • ¾ cup unsweetened cocoa powder - 75g
    • 1 cup all-purpose flour - 120g
    • 1 teaspoon salt

    Topping

    • 1 cup semisweet chocolate chips
    • 13 oz marshmallow fluff - a.k.a. marshmallow creme

    Instructions

    Prepare Graham Cracker Crust

    • Line the bottom and all sides of a 9x9 baking pan with heavy-duty aluminum foil, and spray lightly with cooking spray.
    • Combine graham cracker crumbs, melted butter, and sugar in a bowl. Stir well to coat.
    • Press crust mixture into the bottom of the prepared pan and set aside.

    Brownie Layer

    • Preheat oven to 350°F.
    • Whisk together melted butter, eggs, sugars, and vanilla until smooth.
    • Sift in cocoa powder, flour, and salt and fold into wet ingredients until just combined.
    • Spread batter onto graham cracker crust in pan and smooth the top.
    • Bake for 25-30 minutes or until center is set.
    • Just after removing pan from the oven, add chocolate chips to the top and allow to melt. Spread chocolate in an even layer over warm brownies. Let brownies cool completely (I place mine in the fridge to be sure they're cooled).

    Marshmallow Layer

    • Spoon marshmallow fluff onto chocolate layer and spread evenly.
    • Broil on high for 2 minutes or until top of marshmallow fluff is lightly browned (see note). You can also toast the marshmallow layer with a culinary torch.
    • Chill again to firm up marshmallow layer, then cut and serve! Store leftovers in refrigerator.
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    Video

    Notes

    Eggs: This smokes brownie recipe is based on my Triple-Chocolate Pecan Brownies, but only uses 2 eggs to make a fudgier, denser brownie layer and make a little extra space in the pan for our marshmallow layer.  If you prefer a texture that's slightly more cakey, add in the third egg!
    Spreading and slicing marshmallow fluff: I would suggest having a damp cloth on hand to wipe down your offset spatula each time you spread your marshmallow fluff.  It makes it easier to spread it neatly without getting it everywhere! And the same goes for when you slice your brownies to serve -- be sure to wipe your knife with a damp cloth between each cut!
    Broiler safety: Be sure to watch the pan constantly while using the broiler.  Marshmallow can easily catch fire, so place your pan on a center rack so that it's far enough away from the heat source. Once you see the marshmallows start to smoke, it's time to take them out! In general, use an abundance of caution anytime you're using the broiler.
    Storage and Freezing: These brownies should be stored in the fridge to keep the marshmallow layer fluffy, and should be served chilled or at room temperature. I like them straight out of the fridge, because the marshmallow is still gooey but the chocolate layer is a little crunchy!
    They can also be frozen in an airtight container for up to 2 months.
    Nutrition Disclaimer
    Did you try this recipe? Rate it below!I can't wait to see (and share) your results! Follow me on Instagram at @chenee_today and tag #cheneetoday!

    PIN this smores brownie recipe for later!

    Homemade S'mores Brownies Recipe with Marshmallow Fluff | Chenée Today

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    Last Updated on March 18, 2025 by Chenée Lewis

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    1.4K shares

    Comments

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    1. Karen says

      June 03, 2023 at 7:42 pm

      They were delicious!! I will make Again . Thank you did sharing this recipe .

      Reply
      • Chenée Lewis says

        June 07, 2023 at 12:53 am

        Great to hear it! Thank you!

        Reply
    2. Rachael Dalton says

      April 29, 2023 at 10:38 am

      5 stars
      OMG! These brownies are absolutely incredible. I searched high and low for the best S’mores brownie for a camping themed birthday and these were the absolute winner by far! The graham cracker crust with the brown sugar is killer, the brownies are fudgey and delicious and then that gorgeous cracking of the scorched fluff was sooo satisfying. Perfect ratio.

      I tried other recipes that used actual marshmallows, and they always turned out gummy and gross. Not these. If you’re looking for an absolute crowd winner, this is it!

      Reply
      • Chenée Lewis says

        April 30, 2023 at 8:55 pm

        Thank you so much for the feedback! I'm so happy that you liked them and that they were a hit for the party!

        Reply
    3. Jacqueline Debono says

      November 02, 2020 at 9:56 am

      5 stars
      Wow these s'mores brownies look to die for delicious. I can't find ready marshmallow fluff here in Italy, so will have to make my own (I've done it once before). Planning to make them at the weekend.

      Reply
      • Chenée Lewis says

        November 02, 2020 at 9:23 pm

        Awesome!! I hope you love them! Keep me posted 🙂

        Reply
    4. Anjali says

      November 02, 2020 at 7:16 am

      5 stars
      Omgggg yes to everything about these brownies!! It's like everything I love about traditional brownies but way way better. The graham cracker crust turned out great and my whole family loved them!

      Reply
      • Chenée Lewis says

        November 02, 2020 at 9:23 pm

        Fantastic! I'm so glad they worked out for you all.

        Reply
    5. Emily Liao says

      November 02, 2020 at 1:08 am

      Wow, these smore's brownies were great! So soft and flavorful.

      Reply
      • Chenée Lewis says

        November 02, 2020 at 9:28 pm

        Thanks for trying them out!

        Reply
    6. Jessie says

      November 01, 2020 at 11:52 pm

      5 stars
      Smores and Brownies all in one!! Yes I am going to need these very soon. Adding to my shopping list.

      Reply
      • Chenée Lewis says

        November 02, 2020 at 9:29 pm

        Thank you! I hope you enjoy them!

        Reply
    7. Ashley says

      September 30, 2020 at 8:39 pm

      Can I put the layer of fluff before the brownie batter ?

      Reply
      • Chenée Lewis says

        October 02, 2020 at 5:51 pm

        I would recommend waiting until the brownies are baked and then layering the fluff on top -- marshmallow tends to melt when heated, which is why we spread the marshmallow fluff over chilled brownies and broil it for just a couple of minutes. I would imagine that if you layer the fluff under the brownie batter it would melt into the batter completely while baking. Hope this helps! Let me know if you try the recipe out! 🙂

        Reply
    8. Olivia says

      August 10, 2020 at 9:47 pm

      Oh my sweet!!! I wanna try this S’mores Brownies! Looks really good and makes me hungry right now. 🙂

      Reply
      • Chenée Lewis says

        August 11, 2020 at 10:08 pm

        Thanks!! They're very decadent and SO good!

        Reply
    Homemade S'mores Brownies Recipe with Marshmallow Fluff | Chenée Today

    About Chenée

    I’m Chenée (kinda rhymes with “today”) and I love all types of baking and cooking! But my favorite recipes are ones that are quick and easy, and still yield impressive results. The ones you can't help but make again and again! That's what I share here, and I hope I can make your life a little easier along the way. MORE ABOUT CHENÉE >>

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