Introduction
The classic campfire treat gets a decadent twist in these S’mores Brownies. Combining layers of fudgy brownie, gooey marshmallow, and crunchy graham cracker crumbs, this dessert is sure to delight anyone with a sweet tooth. Perfect for family gatherings or a cozy night in, these brownies are a delicious way to bring nostalgic flavors to your kitchen.
As you embark on this baking adventure, you will discover the joy of layering flavors and textures that work in harmony. Each bite delivers a satisfying crunch followed by rich chocolate and sweet marshmallow, making for an indulgent experience. Gather your ingredients and prepare to impress friends and family with this delightful treat.
Ingredients
- 1 cup unsalted butter
Butter adds richness to the brownie base, contributing to its fudgy texture. Unsalted butter also allows for better control of the salt balance in the recipe. - 2 cups granulated sugar
Sugar not only sweetens the brownies, but it also caramelizes during baking, enhancing flavor and moisture. - 4 large eggs
Eggs provide structure and stability to the brownies, while also adding moisture. They help create the desired chewy texture when baked. - 1 cup all-purpose flour
Flour serves as the backbone of the brownie, providing the necessary structure while keeping them soft and chewy. It’s essential to measure accurately for the right consistency. - 1 cup unsweetened cocoa powder
Cocoa powder delivers the rich chocolate flavor that defines these brownies. It also contributes to their deep color and decadent taste. - 1 teaspoon vanilla extract
Vanilla enhances the overall flavor profile, bringing out the sweetness and mellowing the bitterness of the cocoa. - 1/2 teaspoon salt
A pinch of salt balances the sweetness and heightens the flavors of both chocolate and sugar. It prevents the brownies from tasting overly sweet. - 1 1/2 cups mini marshmallows
Marshmallows provide that signature S’mores element, melting into gooey layers that bind everything together while adding creaminess. - 1 cup graham cracker crumbs
These crumbs bring the crunch characteristic of S’mores and contrast the soft brownie and melted marshmallows, enhancing the texture. - 1/2 cup semisweet chocolate chips
Chocolate chips add extra pockets of chocolate throughout the brownies, enhancing the overall chocolate intensity.
Directions & Preparation
Step 1: Preheat your oven to 350°F (175°C).
Preheating the oven ensures that the brownies bake evenly, developing the right texture and preventing them from becoming dry or unevenly cooked.
Step 2: Grease a 9×13 inch baking pan.
Greasing the pan prevents the brownies from sticking, allowing for easy removal once they’re baked. You can use butter, oil, or parchment paper for a smoother release.
Step 3: In a large saucepan, melt the butter over medium heat.
Melting the butter instead of creaming it aids in achieving a denser brownie. Be careful not to let it brown; you want it melted and smooth.
Step 4: Remove the saucepan from heat and stir in the sugar until well combined.
Mixing in sugar while the butter is warm allows it to dissolve better, incorporating sweetness throughout the batter for a smoother texture.
Step 5: Add the eggs, one at a time, mixing well after each addition.
Adding eggs individually ensures a more uniform mixture, creating a smoother batter that contributes to the perfect chewiness of the final product.
Step 6: Stir in the vanilla extract and mix until combined.
The vanilla extract not only enhances flavor but also helps to incorporate air, giving a slight lift to the brownie batter.
Step 7: Sift together the flour, cocoa powder, and salt; then fold into the wet ingredients.
Sifting the dry ingredients helps remove lumps and combines them evenly, crucial for avoiding a lumpy batter and ensuring a consistent texture throughout.
Step 8: Fold in the chocolate chips, ensuring even distribution.
By gently folding the chocolate chips into the batter, you help maintain the structure of the brownies while ensuring bursts of chocolate in every bite.
Step 9: Pour half of the batter into the prepared pan, smoothing it evenly.
This step ensures that the base layer is even, which is essential for proper baking and even distribution of the toppings we’ll add later.
Step 10: Add the mini marshmallows and graham cracker crumbs over the brownie layer.
Layering marshmallows and graham crackers creates the quintessential S’mores experience. The marshmallows will melt into the brownies, adding moisture and flavor.
Step 11: Spread the remaining brownie batter over the marshmallows.
Sealing the marshmallows with more brownie batter keeps them soft and gooey while preventing them from burning during the baking process.
Step 12: Bake in the preheated oven for 25-30 minutes.
Baking for the right amount of time is critical. Underbaking can lead to raw centers, while overbaking may lead to a dry texture. Use a toothpick to check doneness; it should come out with moist crumbs.
Step 13: Let the brownies cool completely in the pan before cutting into squares.
Cooling allows the brownies to set, making them easier to cut into neat squares. Cutting too soon can cause them to crumble apart.

Choose Your Chocolate Wisely
The type of chocolate you choose can dramatically affect the flavor profile of your S’mores Brownies. Using high-quality semisweet or dark chocolate chips will ensure a more intense chocolate flavor. While you can also experiment with milk chocolate for a sweeter touch, the rich cocoa in the brownie base should balance it out. Therefore, selecting the right type can elevate your dessert experience.
Graham Cracker Alternatives
If you’re looking to shake things up, consider thin chocolate wafer cookies as a substitute for graham cracker crumbs. Alternatively, crushed pretzels can add a salty twist that contrasts beautifully with the sweet elements of the brownies. These alternatives can provide unique textures and flavors, giving your S’mores Brownies an exciting new edge.
Serving Suggestions for This Classic Treat
When it comes to serving these S’mores Brownies, try pairing them with a scoop of vanilla ice cream for a delightful contrast of temperatures. Drizzling with chocolate syrup or caramel can add extra indulgence, while a sprinkle of sea salt on top enhances the flavors further. For a fun presentation, serve them warm, so the gooey marshmallow oozes out with each bite.
FAQs
What can I use if I run out of cocoa powder?
If you're out of cocoa powder, you can replace it with an equal amount of a high-quality dark chocolate, slightly melted, or use a carob powder as an alternative.
Why did my brownies turn out too thick?
Over-measuring the flour could make the batter too thick. Ensure you’re measuring properly by spooning the flour into your measuring cup and leveling it off.
Can I use whole eggs instead of just egg yolks?
Yes, using whole eggs is suitable as they provide moisture and structure. Just remember that it may slightly alter the texture.
Can I add nuts to the brownie batter?
Absolutely! Chopped nuts like walnuts or pecans can add extra crunchiness and flavor. Just fold them into the batter just like chocolate chips.
What if my brownies are overcooked?
If you've overcooked your brownies, they may become dry. You can serve them warm with a scoop of ice cream to help mask the dryness.
How can I tell when my brownies are done baking?
Brownies are done when the edges begin to pull away from the pan, and a toothpick inserted into the center comes out with a few moist crumbs.
Conclusion
These S’mores Brownies are a tasty fusion of flavors that will remind you of summer nights spent around a campfire. With their blend of gooey marshmallows, rich chocolate, and crunchy graham cracker, they offer a comforting treat that’s sure to please any crowd.
Whether you’re serving them at a gathering or simply indulging after a long day, these brownies are easy to prepare and incredibly satisfying. Enjoy the sweet nostalgia and share this delightful recipe with those you love.
Recipe Card

Decadent S’mores Brownies for Every Occasion
Ingredients
Method
- Preheat your oven to 350°F (175°C).
- Grease a 9x13 inch baking pan.
- In a large saucepan, melt the butter over medium heat.
- Remove the saucepan from heat and stir in the sugar until well combined.
- Add the eggs, one at a time, mixing well after each addition.
- Stir in the vanilla extract and mix until combined.
- Sift together the flour, cocoa powder, and salt; then fold into the wet ingredients.
- Fold in the chocolate chips, ensuring even distribution.
- Pour half of the batter into the prepared pan, smoothing it evenly.
- Add the mini marshmallows and graham cracker crumbs over the brownie layer.
- Spread the remaining brownie batter over the marshmallows.
- Bake in the preheated oven for 25-30 minutes.
- Let the brownies cool completely in the pan before cutting into squares.
Notes
Additional serving suggestions: pair with a crisp salad, garlic bread, or roasted seasonal vegetables for balance.
For make-ahead, prep components separately and assemble just before heating to preserve texture.
Taste and adjust with acid (lemon/vinegar) and salt right at the end to wake up flavors.