If you love the classic campfire treat of gooey marshmallows, melted chocolate, and crunchy graham crackers, then you’re going to fall head over heels for these S’mores Brownies! This rich, fudgy dessert combines everything you love about s’mores with the indulgent decadence of homemade brownies. They’re perfect for parties, bake sales, or simply satisfying a serious chocolate craving.
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Why You’ll Love This Recipe
Ultimate Chocolate Lover’s Treat – Rich, fudgy brownies with classic s’mores toppings.
Easy to Make – No fancy techniques, just simple layering.
Perfect Texture – Crunchy, gooey, and fudgy all in one bite.
Crowd Favorite – Everyone loves the nostalgic flavor of s’mores.
Great Year-Round – Enjoy the taste of campfire s’mores without needing a firepit!
Ingredients You’ll Need
For the Graham Cracker Crust:
- 1½ cups graham cracker crumbs
- 6 tbsp unsalted butter, melted
- 2 tbsp granulated sugar
For the Brownie Layer:
- 1 cup unsalted butter, melted
- 1½ cups granulated sugar
- 1 cup brown sugar, packed
- 4 large eggs
- 1 tbsp vanilla extract
- 1 cup all-purpose flour
- 1 cup unsweetened cocoa powder
- ½ tsp baking powder
- ½ tsp salt
For the Topping:
- 2 cups mini marshmallows
- 1 cup semisweet chocolate chips
- Extra graham cracker pieces for decoration (optional)
Tools You’ll Need
- 9×13-inch baking pan
- Parchment paper
- Mixing bowls
- Whisk and spatula
- Measuring cups and spoons
Step-by-Step Instructions
Step 1: Preheat the Oven and Prepare the Pan
Preheat your oven to 350°F (175°C).
Line a 9×13-inch baking pan with parchment paper, leaving an overhang on the sides for easy removal.
Step 2: Make the Graham Cracker Crust
In a bowl, mix the graham cracker crumbs, melted butter, and sugar until combined.
Press the mixture firmly and evenly into the bottom of the prepared pan.
Bake the crust for 8 minutes, then remove from the oven and set aside.
Step 3: Make the Brownie Batter
In a large bowl, whisk together the melted butter, granulated sugar, and brown sugar until smooth.
Add the eggs and vanilla extract, whisking until fully combined.
Sift in the flour, cocoa powder, baking powder, and salt.
Fold everything together with a spatula until no streaks remain.
Step 4: Assemble and Bake
Pour the brownie batter over the baked graham cracker crust and spread evenly.
Bake for 25-30 minutes, until a toothpick inserted into the center comes out with a few moist crumbs.
Step 5: Add the S’mores Topping
Remove the brownies from the oven and immediately sprinkle mini marshmallows and chocolate chips evenly over the top.
Return the pan to the oven and bake for an additional 3-5 minutes, until the marshmallows are puffed and lightly golden.
Step 6: Cool and Serve
Let the brownies cool completely in the pan.
Use the parchment paper overhang to lift them out and slice into squares.
Optional: Garnish with extra graham cracker pieces for a fun look.
Tips for the Best S’mores Brownies
Use Real Butter – It adds rich flavor and perfect texture to both the crust and the brownies.
Don’t Overbake – Brownies should be fudgy, not dry, so keep a close eye on baking time.
Toast Marshmallows Carefully – Broil for just a few seconds if you want extra golden marshmallows (watch closely!).
Let Them Cool – Cutting into warm brownies can be messy; cooling helps them set beautifully.
Customize – Add a layer of peanut butter or caramel sauce for an extra decadent twist.
Serving Suggestions
Pair S’mores Brownies with:
- A tall glass of cold milk
- Hot cocoa topped with whipped cream
- Fresh strawberries for a fruity balance
- Ice cream for an indulgent dessert
Perfect for:
- Birthday parties
- Bake sales
- Holiday gatherings
- Summer BBQs and picnics
How to Store & Reheat
Storing:
Room Temperature: Store in an airtight container for up to 3 days.
Refrigerate: For slightly longer storage (up to 5 days), keep them chilled.
Reheating:
Microwave: Warm a brownie square for about 10-15 seconds to make the marshmallows gooey again.
Oven: Reheat in a 300°F (150°C) oven for 5 minutes if desired.
Frequently Asked Questions
- Can I use a boxed brownie mix?
Yes! Prepare the boxed mix as directed and pour it over the baked graham cracker crust. - Can I use large marshmallows?
Mini marshmallows work best, but you can cut large marshmallows into smaller pieces if needed. - How do I make these brownies extra gooey?
Slightly underbake the brownies, and the marshmallow topping will add to the gooey goodness. - Can I freeze S’mores Brownies?
Absolutely! Freeze in an airtight container for up to 2 months. Thaw at room temperature before serving.
Final Thoughts
S’mores Brownies are a delightful twist on two beloved treats, bringing the magic of campfire s’mores into a rich, chocolatey dessert bar. They’re fun, easy, and always a huge hit. Whether you’re baking for a crowd or simply treating yourself, these brownies are sure to bring a smile to everyone’s face.
Try it out and let me know what you think! Don’t forget to leave a review below and share your photos on Pinterest! I can’t wait to see how your S’mores Brownies turn out.
Preparation Time: 20 minutes
Cooking Time: 35 minutes
Cuisine: American
Nutritional Information (Per Serving):
Calories: 380 | Protein: 4g | Carbohydrates: 47g | Fat: 20g | Fiber: 2g | Sodium: 180mg

S’mores Brownies
- Total Time: 55 minutes
Description
If you love the classic campfire treat of gooey marshmallows, melted chocolate, and crunchy graham crackers, then you’re going to fall head over heels for these S’mores Brownies! This rich, fudgy dessert combines everything you love about s’mores with the indulgent decadence of homemade brownies. They’re perfect for parties, bake sales, or simply satisfying a serious chocolate craving.
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Ingredients
For the Graham Cracker Crust:
-
1½ cups graham cracker crumbs
-
6 tbsp unsalted butter, melted
-
2 tbsp granulated sugar
For the Brownie Layer:
-
1 cup unsalted butter, melted
-
1½ cups granulated sugar
-
1 cup brown sugar, packed
-
4 large eggs
-
1 tbsp vanilla extract
-
1 cup all-purpose flour
-
1 cup unsweetened cocoa powder
-
½ tsp baking powder
-
½ tsp salt
For the Topping:
-
2 cups mini marshmallows
-
1 cup semisweet chocolate chips
-
Extra graham cracker pieces for decoration (optional)
Instructions
Step 1: Preheat the Oven and Prepare the Pan
Preheat your oven to 350°F (175°C).
Line a 9×13-inch baking pan with parchment paper, leaving an overhang on the sides for easy removal.
Step 2: Make the Graham Cracker Crust
In a bowl, mix the graham cracker crumbs, melted butter, and sugar until combined.
Press the mixture firmly and evenly into the bottom of the prepared pan.
Bake the crust for 8 minutes, then remove from the oven and set aside.
Step 3: Make the Brownie Batter
In a large bowl, whisk together the melted butter, granulated sugar, and brown sugar until smooth.
Add the eggs and vanilla extract, whisking until fully combined.
Sift in the flour, cocoa powder, baking powder, and salt.
Fold everything together with a spatula until no streaks remain.
Step 4: Assemble and Bake
Pour the brownie batter over the baked graham cracker crust and spread evenly.
Bake for 25-30 minutes, until a toothpick inserted into the center comes out with a few moist crumbs.
Step 5: Add the S’mores Topping
Remove the brownies from the oven and immediately sprinkle mini marshmallows and chocolate chips evenly over the top.
Return the pan to the oven and bake for an additional 3-5 minutes, until the marshmallows are puffed and lightly golden.
Step 6: Cool and Serve
Let the brownies cool completely in the pan.
Use the parchment paper overhang to lift them out and slice into squares.
Optional: Garnish with extra graham cracker pieces for a fun look.
Notes
Use Real Butter – It adds rich flavor and perfect texture to both the crust and the brownies.
Don’t Overbake – Brownies should be fudgy, not dry, so keep a close eye on baking time.
Toast Marshmallows Carefully – Broil for just a few seconds if you want extra golden marshmallows (watch closely!).
Let Them Cool – Cutting into warm brownies can be messy; cooling helps them set beautifully.
Customize – Add a layer of peanut butter or caramel sauce for an extra decadent twist.
- Prep Time: 20 minutes
- Cook Time: 35 minutes
- Cuisine: American