These S’mores Brownies bring all the magic of a campfire treat into your kitchen. Baked in a cast-iron skillet, this recipe layers fudgy brownies with graham crackers, melty chocolate, and golden toasted marshmallows. Whether you’re gathered around the fire or cozying up indoors, this dessert is a nostalgic favorite everyone will love!
There’s something about s’mores that takes me straight back to childhood campfires—the crackle of the fire, gooey marshmallows melting into chocolate, and graham cracker crumbs sticking to my fingers. But sometimes, you just can’t light a campfire (or maybe it’s too cold outside to even think about it). That’s when I love to bring that campfire magic into my kitchen with these S’mores Brownies baked in a cast-iron skillet!
The skillet keeps the brownies extra fudgy in the middle with perfectly crisp edges, while the marshmallows toast up just like they would over an open flame. Whether you’re baking these for a cozy family night in, a potluck with friends, or even a summer backyard gathering, this recipe will hit that sweet spot of nostalgia and indulgence.
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Why This Recipe Is Perfect for Campfire Lovers
If you’re like me and love the taste of roasted marshmallows and melty chocolate, this recipe is a dream come true. You can bake it over a campfire with a Dutch oven or make it in your home oven when you’re craving that rustic flavor indoors. It’s a treat that makes any night feel special—whether it’s a chilly evening in winter or a summer night when you just want dessert without the mess of sticky fingers around a fire.
How to Make the Best S’mores Brownies
Ingredients You’ll Need
Graham Cracker Crust
- 2 cups graham cracker crumbs (about 14 full sheets)
- ½ cup unsalted butter, melted
- ¼ cup granulated sugar
Brownie Layer
- 1 cup (2 sticks) unsalted butter
- 2 cups granulated sugar
- 1 cup unsweetened cocoa powder
- 1 teaspoon vanilla extract
- 4 large eggs
- 1 cup all-purpose flour
- ½ teaspoon baking powder
- ½ teaspoon salt
- 1 cup semi-sweet chocolate chips (or chopped chocolate bar pieces), marshmallows, and graham cracker pieces
S’mores Topping
- 2 cups mini marshmallows
- 1 cup chocolate pieces
1. Make the Graham Cracker Crust
Preheat your oven to 350°F. In a bowl, mix graham cracker crumbs, melted butter, and sugar until combined. Press firmly into the bottom of a greased 12-inch cast-iron skillet to create an even crust. Bake for 8 minutes, then set aside.
2. Make the Brownie Batter
In a saucepan over medium-low heat, melt butter. Remove from heat and whisk in sugar and cocoa powder until smooth. Stir in vanilla. Add eggs one at a time, whisking well after each. Gently fold in flour, baking powder, and salt until just combined. Stir in chocolate chips, marshmallows, and graham cracker bits.
3. Bake the Brownies
Pour brownie batter over the pre-baked graham cracker crust. Spread evenly. Bake for 30–35 minutes, until the edges are set but the center still looks fudgy.
4. Add the Chocolate and Marshmallow Topping
Remove the skillet from the oven and immediately add more chocolate pieces and sprinkle marshmallows on top. Return to the oven for 3–5 minutes, or until the marshmallows are puffed and golden brown. (For extra toasty marshmallows, you can use your oven’s broiler for 1–2 minutes—just watch closely!)
5. Cool & Serve
Allow the brownies to cool for at least 10 minutes before slicing. Serve warm, straight from the skillet for that rustic, cozy presentation.
Conclusion
These cast-iron S’mores Brownies are the perfect blend of comfort and nostalgia. They remind me that you don’t need a campfire to enjoy the flavors of summer nights under the stars. Whether you share them with family, serve them at a gathering, or keep them all to yourself (no judgment here!), these brownies are sure to become a new favorite in your home.
Resources: Here are some helpful resources for further information.
- The Best Camping Desserts to Cook on Your Next Trip – By Refreshing Camping
- The Best Dessert for Around the Campfire – By Wander Camp
- Cook Delicious Ten-Minute Tinfoil Campfire Desserts – By The Landmark Project
Frequently Asked Questions
1. Can I bake these in a regular baking dish instead of a cast-iron pan?
Yes! A 9×13 baking dish works perfectly. Just keep an eye on baking time since glass or metal pans may cook a little faster than cast iron.
2. Can I make these ahead of time?
You can bake the brownies a day ahead, but I recommend adding the marshmallow topping just before serving so it stays gooey and fresh.
3. How should I store leftovers?
Keep any leftovers covered at room temperature for up to 2 days, or refrigerate for up to 5. Reheat in the oven for a few minutes to soften the marshmallows again.
S’mores Brownies
Equipment
- 1 mixing bowl
- 1 12-inch cast-iron pan or baking dish
Ingredients
For the Crust
- 2 cups graham cracker crumbs
- ½ cup unsalted butter, melted
- ¼ cup sugar
S’mores Brownies
- 1 cup (2 sticks) unsalted butter
- 2 cups granulated sugar
- 1 cup unsweetened cocoa powder
- 1 tsp vanilla extract
- 4 large eggs
- 1 cup all-purpose flour
- ½ tsp baking powder
- ½ tsp salt
- 1 cup semi-sweet chocolate chips, graham cracker pieces, and marshmallows.
S’mores Topping
- 2 cups mini marshmallows
- 1 cup chocolate pieces
Instructions
- Preheat oven to 350°F and grease a 12-inch cast-iron skillet.
- Mix graham cracker crumbs, melted butter, and sugar. Press into skillet and bake for 8 minutes.
- In a saucepan, melt butter. Stir in sugar and cocoa until smooth. Add vanilla. Whisk in eggs one at a time. Fold in flour, baking powder, and salt. Stir in chocolate chips, marshmallows, and graham cracker bits.
- Spread brownie batter over the crust and bake 30–35 minutes, until edges are set and center is fudgy.
- Sprinkle chocolate pieces and marshmallows on top. Bake 3–5 minutes or broil 1–2 minutes until golden.
- Cool 10 minutes before slicing and serving straight from the skillet.
Summary
I hope I have inspired you to make these recipes in your cast iron skillet to enjoy and share with your friends and family.
If you were encouraged by this post, I invite you to check out my FREE Printables Page for fun free printables, planners, and charts.
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Here are some more of my cast-iron cooking inspiration posts to check out!
How to Make Chicken Cobbler with Vegetarian Option
Buttermilk Pancakes: How to Make Sourdough Buttermilk Pancakes
Pumpkin Spice Pancakes: How to Make Sourdough Pumpkin Spice Pancakes
Chocolate Pancakes: How to Make Chocolate Sourdough Pancakes
The Best Cherry Galette Recipe
How to Cook Scrambled Eggs In a Cast Iron Skillet without Sticking!
How to Season Cast Iron for Cooking
The Best Old-Fashioned Homemade Brownies: A Cast Iron Skillet Recipe!
How to Make Dutch Oven Lasagna
How to Make Black Bean Burgers from the Garden!
Blessings,
The Off Grid Barefoot Girl
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