In the cozy glow of kitchen lights, I found myself in a sweet dilemma—how to bring the essence of campfire s’mores indoors. Enter these Ultimate Gooey S’mores Brownies, a delightful fusion of nostalgia and indulgence. With a buttery graham cracker crust and layers of rich, fudgy brownie batter swirled with marshmallow fluff, these treats offer a heavenly taste in under 45 minutes. Plus, they’re customizable with a gluten-free option, making them perfect for everyone at your gathering! Whether you’re satisfying a sweet tooth or sharing with friends, these brownies capture that summertime magic without ever needing to step outside. What’s your favorite way to enjoy a s’more-inspired dessert?

Why are S’mores Brownies so irresistible?
Decadent Texture: The perfect combination of fudgy brownie layers and fluffy marshmallow creates a melt-in-your-mouth experience.
Quick to Make: In just under 45 minutes, you can whip up these delightful treats—ideal for anyone looking to satisfy cravings fast!
Customizable Options: Want to tailor them? Substitutions for gluten-free or vegan ingredients make these brownies accessible to all, fitting into various dietary needs.
Crowd-Pleasing Treat: These brownies serve up nostalgia that appeals to both adults and kids alike, making them perfect for gatherings or family treats.
Serve Warm: For added indulgence, consider serving them warm with a scoop of vanilla ice cream—it’s a treat that your guests will rave about!
S’mores Brownies Ingredients
For the Crust
• Unsalted Butter – 11 tablespoons total for richness and moisture; use vegan butter for a dairy-free version.
• Graham Cracker Crumbs – 1 cup to form a buttery crust; gluten-free graham crackers can be substituted for a gluten-free option.
For the Brownie Batter
• Granulated Sugar – 1¼ cups to sweeten the brownies and enhance their fudgy texture.
• Unsweetened Cocoa Powder – ¾ cup + 2 tablespoons for intense chocolate flavor; opt for dark cocoa powder for deeper taste.
• Salt – ¼ teaspoon to enhance sweetness and balance flavors.
• Vanilla Extract – 1 teaspoon to add aromatic complexity.
• Large Eggs – 2 to bind ingredients; substitute with flax eggs for a vegan option.
• All-Purpose Flour – ½ cup for structure; can be replaced with a gluten-free flour blend.
For the Mix-Ins
• Milk Chocolate Chips – 1 cup for melty chocolate bursts; dark chocolate chips can be used for a richer experience.
• Marshmallow Fluff – ½ cup for that gooey texture; feel free to use homemade or store-bought.
• Mini Marshmallows – 1 cup as a topping that adds texture and sweetness when toasted.
Step‑by‑Step Instructions for S’mores Brownies
Step 1: Prepare Crust
Preheat your oven to 325°F (160°C) and line an 8×8-inch baking pan with foil or parchment paper, then lightly grease it. In a medium bowl, combine the melted butter with graham cracker crumbs, mixing until fully integrated. Press this mixture firmly into the bottom of the prepared pan to form a sturdy crust, ensuring an even layer for the ultimate S’mores Brownies.
Step 2: Make Brownie Batter
In a microwave-safe bowl, combine the remaining unsalted butter, granulated sugar, cocoa powder, and salt. Microwave this mixture in 30-second intervals, stirring until it’s fully melted and smooth—this should take about 1 to 2 minutes total. Once melted, let it cool slightly before moving to the next step, ensuring no scrambling of the eggs occurs later.
Step 3: Mix in Eggs and Flour
Stir in the vanilla extract and add the eggs one at a time, mixing vigorously until the batter becomes thick and glossy. Gradually incorporate the all-purpose flour, stirring until just combined. Gently fold in the milk chocolate chips, allowing them to add melty bursts of chocolate to your S’mores Brownies mixture.
Step 4: Layer Ingredients
Pour half of the brownie batter into the prepared pan, smoothing it evenly over the crust. Take spoonfuls of marshmallow fluff and place dollops across the surface, swirling lightly with a knife for a delightful mix. Add the remaining brownie batter on top and repeat the process with more marshmallow fluff, creating beautiful, gooey swirls throughout.
Step 5: Bake
Carefully place the pan in the preheated oven and bake for 25 minutes. After baking, increase the oven temperature to 375°F (190°C). Remove the brownies briefly to sprinkle the mini marshmallows on top, then return them to the oven for an additional 3 to 5 minutes, or until the marshmallows are puffed and golden brown, creating that signature s’mores topping.
Step 6: Cool and Serve
Once baked, take the pan out of the oven and let the S’mores Brownies cool completely in the pan. This cooling period is crucial for achieving clean cuts. After they are cool, slice them into squares, revealing the layers of chocolate and marshmallow, ready to be embraced by friends and family.

Variations & Substitutions for S’mores Brownies
Feel free to unleash your creativity and make these S’mores Brownies genuinely yours with these delicious twists!
- Gluten-Free: Use a 1:1 gluten-free flour blend and gluten-free graham crackers to adapt the recipe while keeping that delicious texture.
- Vegan Delight: Substitute eggs with flax eggs (1 tbsp flaxseed meal + 2.5 tbsp water) and use vegan butter for a fully plant-based treat.
- Nutty Addition: Toss in some chopped nuts, like walnuts or almonds, to add a delightful crunch that complements the gooey textures beautifully.
- Fruit Twist: Mix in some chopped strawberries or raspberries for a fruity surprise that pairs wonderfully with chocolate and marshmallow.
- Peanut Butter Swirl: Add spoonfuls of creamy peanut butter on top of the brownie batter before baking for a rich, nutty flavor explosion.
- Spiced Up: A pinch of cinnamon or cayenne pepper can be added to the brownie batter for a warm kick that will surprise your taste buds.
- Flavor Infusion: Replace milk chocolate chips with dark or white chocolate chips, or even butterscotch chips for a unique and delectable experience.
- Caramel Drizzle: Drizzle warm caramel over the top of the brownies just before serving for a luxurious buttery sweetness that elevates each bite.
Enhancing your S’mores Brownies with these variations is sure to delight family and friends alike. And don’t forget—a scoop of vanilla ice cream on the side can be the perfect complement to these gooey treats!
Expert Tips for S’mores Brownies
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Perfect Swirls: Don’t over-swirl the marshmallow fluff to keep gooey pockets intact, enhancing the S’mores Brownies’ texture.
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Keep an Eye on Toppings: Watch the mini marshmallows while they toast; they can burn easily. A few minutes is all it takes for them to become golden.
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Chill for Clean Cuts: Allow the brownies to cool completely before slicing. A sharp knife will yield smooth edges if cleaned between cuts.
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Ingredient Quality Matters: Use good-quality chocolate and pure vanilla extract to elevate the flavor of your S’mores Brownies.
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Customize Wisely: For gluten-free options, choose 1:1 flour blends and gluten-free graham crackers to maintain texture without sacrificing taste.
What to Serve with Ultimate Gooey S’mores Brownies
Treat your taste buds to the perfect meal accompaniment that enhances these rich and decadent brownies.
- Vanilla Ice Cream: A scoop of creamy vanilla ice cream adds a delightful contrast and enhances the chocolate and marshmallow flavors.
- Fresh Berries: Sweet, juicy strawberries or raspberries provide a tart freshness that cuts through the sweetness, balancing every bite.
- Chocolate Sauce: Drizzling warm chocolate sauce on top elevates the indulgence and brings extra chocolate richness to each slice.
- Whipped Cream: Light and airy whipped cream creates a lovely textural contrast and adds a touch of elegance to your dessert experience.
- Milk: A tall glass of cold milk complements the sweetness beautifully and helps wash down each gooey morsel without overwhelming flavors.
- Coffee: Serve with a rich cup of coffee or espresso—its bitter notes balance the sweetness of the brownies perfectly, creating a harmonious pairing.
- Nutty Biscotti: Crunchy biscotti can serve as a great side snack, providing texture contrast and enhancing the indulgent flavors of your S’mores Brownies.
- Hot Chocolate: For a double dose of chocolate happiness, pair your brownies with a warm cup of hot cocoa—it’s a cozy embrace in every sip.
How to Store and Freeze S’mores Brownies
Room Temperature: Store your S’mores Brownies in an airtight container at room temperature for up to 3 days to maintain their delightful texture and flavor.
Fridge: For extended freshness, refrigerate the brownies in a sealed container for up to 1 week, but note that they may lose some of their gooeyness.
Freezer: Wrap individual brownies tightly in plastic wrap and place in a freezer-safe container. They can be frozen for up to 3 months, ensuring you have a sweet treat ready whenever cravings strike!
Reheating: To enjoy them warm, simply thaw in the fridge overnight and microwave for 10-15 seconds before serving, bringing back that gooey goodness of your S’mores Brownies.
Make Ahead Options
These Ultimate Gooey S’mores Brownies are fantastic for meal prep and can save you precious time during busy weeknights! You can prepare the graham cracker crust and brownie batter up to 24 hours in advance. Simply store the crust in the refrigerator, tightly covered, to keep it fresh, and keep the brownie batter in an airtight container. When you’re ready to bake, pour the brownie batter over the crust and follow the steps for layering with marshmallow fluff and mini marshmallows. This will allow you to enjoy freshly baked brownies without the fuss, ensuring they are just as delicious and gooey as they should be!

S’mores Brownies Recipe FAQs
How do I select the best graham crackers for the crust?
Absolutely! Choose graham crackers that are fresh and free from dark spots or damage. For gluten-free versions, look for certified gluten-free graham crackers available at health food stores, ensuring they are just as delicious as the classic ones.
What’s the best way to store leftover S’mores Brownies?
To keep your S’mores Brownies fresh, store them in an airtight container at room temperature for up to 3 days. If you prefer to extend their shelf life, refrigerate them for up to a week, though they may lose some gooey charm.
Can I freeze S’mores Brownies and how?
Yes, you can! Wrap each brownie individually in plastic wrap or foil and place them in a freezer-safe container. They will stay fresh for up to 3 months. When you’re ready to enjoy, thaw in the refrigerator overnight and reheat in the microwave for 10-15 seconds to revive that gooey goodness.
What can I do if my marshmallows burn while baking?
Very! If you notice your marshmallows browning too quickly, you can cover the brownies lightly with aluminum foil during the last few minutes of baking. This will protect them from direct heat while allowing the brownies to continue cooking.
Are there any dietary considerations for pets or allergies?
Absolutely! While these S’mores Brownies are a delightful treat for humans, keep them away from pets, as chocolate is toxic to dogs and cats. For those with allergies, ensure you select allergen-free substitutes for ingredients like flour and chocolate chips according to your dietary needs.

Gooey S'mores Brownies That Will Melt Your Heart
Ingredients
Equipment
Method
- Preheat oven to 325°F (160°C) and line an 8x8-inch baking pan. Combine melted butter and graham cracker crumbs in a medium bowl and press into pan.
- In a microwave-safe bowl, combine remaining butter, sugar, cocoa powder, and salt. Microwave until melted and smooth, about 1-2 minutes. Let cool slightly.
- Stir in vanilla and add eggs one at a time, mixing until thick and glossy. Gradually incorporate flour and fold in chocolate chips.
- Pour half the brownie batter into the prepared pan. Add dollops of marshmallow fluff and swirl. Top with remaining batter and more fluff.
- Bake for 25 minutes, increase temperature to 375°F (190°C), add mini marshmallows, and bake for an additional 3-5 minutes until golden brown.
- Let the brownies cool completely before slicing into squares.

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