Introduction
The crackling of a bonfire, the laughter of friends, and the gooey sweetness of toasted marshmallows—there’s nothing quite like a perfect bonfire night! And what’s better than adding a dessert that combines all your favorite campfire flavors? Enter the irresistible s’mores brownie bars. Packed with layers of fudgy brownies, crunchy graham crackers, and gooey marshmallows, these bars are an indulgent treat that will take your bonfire gatherings to the next level.
I first tried my hand at s’mores brownie bars during a family camping trip. Let me tell you, these bars were an instant hit. The kids loved the melty marshmallows, while the adults couldn’t get enough of the rich chocolate flavor paired with the buttery graham cracker crust. Every bite felt like a hug by the fire, and since then, this recipe has been my go-to for any outdoor get-together. Plus, they’re easy to make and travel perfectly. What’s not to love?
Whether you’re hosting a backyard bonfire, heading to a picnic, or simply craving an indulgent dessert, these s’mores brownie bars are your answer. With just a handful of ingredients and a little bit of love, you’ll have a dessert that’s sure to impress everyone. Let’s dive right in!
Why You’ll Love This Recipe
There’s a lot to adore about these s’mores brownie bars. Trust me, once you try them, you’ll be making them on repeat for every occasion. Here’s why:
- Perfect for Bonfire Nights: These bars are the ultimate dessert for cozying up by the fire. They pair perfectly with a warm drink under the stars.
- Easy to Make: With simple ingredients and straightforward steps, this recipe is beginner-friendly and doesn’t require fancy equipment.
- All the S’mores Goodness: You get the classic trio—graham crackers, chocolate, and marshmallows—in every single bite, but elevated with a fudgy brownie layer.
- Crowd-Pleaser: Whether it’s kids or adults, everyone loves this gooey, chocolatey treat. It’s guaranteed to disappear quickly!
- Make-Ahead Friendly: Prepare these bars ahead of time and store them for up to several days. They’re just as delicious after a little time in the fridge.
What truly sets this recipe apart is the combination of textures and flavors. The chewy brownie base pairs beautifully with the crunch of the graham cracker crust and the melt-in-your-mouth marshmallow layer. It’s the best of both worlds—classic s’mores flavor and rich chocolate decadence, all in an easy-to-share form.
What Ingredients You Will Need
This recipe uses simple, accessible ingredients to create layers of deliciousness. You likely have most of these already in your pantry!
- For the Graham Cracker Crust:
- 2 cups (200g) graham cracker crumbs
- 1/2 cup (115g) unsalted butter, melted
- 1/4 cup (50g) granulated sugar
- For the Brownie Layer:
- 1 cup (120g) all-purpose flour
- 1/2 cup (50g) unsweetened cocoa powder
- 1/2 teaspoon salt
- 1/4 teaspoon baking powder
- 1/2 cup (115g) unsalted butter, melted
- 1 cup (200g) granulated sugar
- 2 large eggs
- 1 teaspoon vanilla extract
- For the S’mores Topping:
- 2 cups (120g) mini marshmallows
- 1 cup (170g) semi-sweet chocolate chips
Feel free to mix things up! For a gluten-free option, swap the graham crackers for gluten-free ones and use almond flour instead of all-purpose flour. If you’re dairy-free, opt for vegan butter and dairy-free chocolate chips.
Equipment Needed
- 9×13-inch baking pan (or similar size)
- Parchment paper
- Mixing bowls (at least two)
- Whisk and spatula
- Measuring cups and spoons
- Oven mitts
If you don’t have a whisk, a fork works just as well for mixing. For the graham cracker crust, a food processor makes quick work of crushing crackers, but a zip-top bag and rolling pin will do the trick too!
Preparation Method
- Prepare the Graham Cracker Crust: Preheat your oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper, leaving some overhang for easy removal. In a mixing bowl, combine graham cracker crumbs, melted butter, and sugar. Stir until the mixture resembles wet sand. Press evenly into the bottom of the pan to form the crust. Bake for 8 minutes, then set aside to cool.
- Make the Brownie Batter: In a medium bowl, whisk together the flour, cocoa powder, salt, and baking powder. In another bowl, mix melted butter and sugar until smooth. Stir in the eggs and vanilla extract until fully combined. Gradually add the dry ingredients to the wet, stirring until just combined.
- Spread the Brownie Layer: Pour the brownie batter over the cooled graham cracker crust, spreading it evenly. Bake for 25-30 minutes, or until a toothpick inserted into the center comes out with a few moist crumbs.
- Add the S’mores Topping: Remove the pan from the oven and sprinkle the mini marshmallows evenly over the brownie layer. Scatter the chocolate chips on top. Return the pan to the oven for 3-5 minutes, or until the marshmallows puff up slightly and begin to turn golden.
- Cool and Slice: Let the s’mores brownie bars cool completely in the pan. You can refrigerate them for about 30 minutes to make slicing easier. Once set, use the parchment paper to lift the bars out, then slice them into squares or rectangles.
Cooking Tips & Techniques
- Don’t Overbake the Brownie Layer: Keep an eye on the brownies while they bake. They should be fudgy, not dry, so remove them as soon as a toothpick comes out with moist crumbs.
- Use Fresh Marshmallows: Older marshmallows won’t puff up as nicely and could become chewy instead of gooey.
- Cool Completely Before Cutting: It’s tempting to dig in right away, but allowing the bars to cool ensures neat slices and better texture.
- Layer Evenly: When sprinkling marshmallows and chocolate chips, try to distribute them evenly for balanced bites.
- Make Extra Crust: If you love graham crackers, double the crust recipe for a thicker base!
Variations & Adaptations
- Seasonal Twist: Add crushed candy canes to the topping during the holidays for a peppermint s’mores vibe.
- Nutty Delight: Sprinkle chopped walnuts or pecans over the marshmallow and chocolate layer for added crunch.
- Gluten-Free Option: Use gluten-free graham crackers and substitute all-purpose flour with almond or coconut flour.
- Peanut Butter Lovers: Swirl some peanut butter into the brownie batter before baking for a nutty kick.
- Fruit Infusion: Add a layer of sliced strawberries or raspberries between the brownie and marshmallow layers for a fruity twist.
Serving & Storage Suggestions
These s’mores brownie bars are best served slightly warm with gooey marshmallows and melted chocolate. Pair them with a hot cup of cocoa or roasted coffee for the ultimate bonfire treat. For a more indulgent experience, add a scoop of vanilla ice cream on the side.
If you have leftovers (unlikely!), store them in an airtight container at room temperature for up to 3 days. For longer storage, refrigerate them for up to a week or freeze them for up to a month. To reheat, pop them in the microwave for 10-15 seconds to revive that gooey texture.
Nutritional Information & Benefits
While these s’mores brownie bars are definitely a treat, they’re worth every bite! Here’s a rough estimate per serving (based on 12 servings):
- Calories: 250-300
- Fat: 12-15g
- Carbohydrates: 35-40g
- Protein: 3-4g
Thanks to the chocolate and marshmallows, these bars are a great pick-me-up for bonfire nights when you need a little sugar boost. For a slightly healthier twist, consider using dark chocolate for antioxidants or cutting back on the sugar.
Conclusion
These irresistible s’mores brownie bars truly have everything you need for a cozy bonfire night—comfort, sweetness, and that nostalgic campfire flavor. Whether you’re making them for family, friends, or just yourself, they’re a guaranteed hit.
I love how versatile this recipe is, too. You can customize it to fit your preferences or the season, making it a treat you’ll never get bored of. So grab your ingredients, whip up a batch, and enjoy the magic of s’mores in brownie form!
Let me know how yours turn out in the comments below! If you loved this recipe, don’t forget to share it with friends or save it for later. Happy baking!
FAQs
Can I use a boxed brownie mix for this recipe?
Absolutely! If you’re short on time, a brownie mix works perfectly. Just prepare it according to package instructions and layer it over the graham cracker crust.
What’s the best way to crush graham crackers?
A food processor makes quick work of it, but you can also place them in a zip-top bag and crush them with a rolling pin for a no-fuss option.
Can I make these bars dairy-free?
Yes! Use dairy-free butter, dairy-free chocolate chips, and check that your graham crackers are dairy-free.
How do I prevent the marshmallows from burning?
Keep an eye on them while they’re in the oven—3-5 minutes is all they need. If your broiler is too strong, you can toast them using a kitchen torch instead.
Can I make these ahead of time?
Yes, these bars are great for making ahead! Store them in the fridge and reheat them slightly before serving for the best texture.
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Irresistible Smores Brownie Bars Recipe for Perfect Bonfire Nights
Packed with layers of fudgy brownies, crunchy graham crackers, and gooey marshmallows, these bars are an indulgent treat perfect for bonfire nights and outdoor gatherings.
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Total Time: 55 minutes
- Yield: 12 servings 1x
- Category: Dessert
- Cuisine: American
Ingredients
- 2 cups (200g) graham cracker crumbs
- 1/2 cup (115g) unsalted butter, melted
- 1/4 cup (50g) granulated sugar
- 1 cup (120g) all-purpose flour
- 1/2 cup (50g) unsweetened cocoa powder
- 1/2 teaspoon salt
- 1/4 teaspoon baking powder
- 1/2 cup (115g) unsalted butter, melted
- 1 cup (200g) granulated sugar
- 2 large eggs
- 1 teaspoon vanilla extract
- 2 cups (120g) mini marshmallows
- 1 cup (170g) semi-sweet chocolate chips
Instructions
- Preheat your oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper, leaving some overhang for easy removal.
- In a mixing bowl, combine graham cracker crumbs, melted butter, and sugar. Stir until the mixture resembles wet sand. Press evenly into the bottom of the pan to form the crust. Bake for 8 minutes, then set aside to cool.
- In a medium bowl, whisk together the flour, cocoa powder, salt, and baking powder. In another bowl, mix melted butter and sugar until smooth. Stir in the eggs and vanilla extract until fully combined. Gradually add the dry ingredients to the wet, stirring until just combined.
- Pour the brownie batter over the cooled graham cracker crust, spreading it evenly. Bake for 25-30 minutes, or until a toothpick inserted into the center comes out with a few moist crumbs.
- Remove the pan from the oven and sprinkle the mini marshmallows evenly over the brownie layer. Scatter the chocolate chips on top. Return the pan to the oven for 3-5 minutes, or until the marshmallows puff up slightly and begin to turn golden.
- Let the s’mores brownie bars cool completely in the pan. Refrigerate them for about 30 minutes to make slicing easier. Once set, use the parchment paper to lift the bars out, then slice them into squares or rectangles.
Notes
[‘Don’t overbake the brownie layer to keep it fudgy.’, ‘Use fresh marshmallows for better texture.’, ‘Cool completely before cutting for neat slices.’, ‘Distribute marshmallows and chocolate chips evenly for balanced bites.’, ‘Double the crust recipe for a thicker base if desired.’]
Nutrition
- Serving Size: 1 bar
- Calories: 250300
- Fat: 1215
- Carbohydrates: 3540
- Protein: 34
Keywords: s'mores, brownie bars, bonfire dessert, chocolate dessert, marshmallow recipe






