S’mores Brownies
on Mar 30, 2019, Updated Jun 12, 2025
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S’mores Brownies are the ultimate mash-up of gooey campfire nostalgia and rich, fudgy chocolate goodness—all baked into one easy dessert. Made with a simple box mix, graham cracker crumbs, and melty marshmallows, these brownies bring classic s’mores flavor straight from the oven.
Want to wow your family or bake this fun spin on classic brownies with the kids? Keep reading, and we’ll show you exactly how to make this irresistible treat at home.
Table of Contents
S’mores Brownies – Recipe Details
Category: Dessert, Easy Baking Recipes, Kid-Friendly
Cuisine: American
Skill Level: Easy
Prep Time: 10 minutes
Cook Time: 30–35 minutes
Total Time: About 45 minutes
Servings: 9–12
Main Ingredients: box mix brownie batter, chocolate chips, graham crackers, marshmallows
Equipment Needed: square baking pan, mixing bowl, measuring cup, parchment paper, broiler
About These S’mores Brownies
Desserts and brownies are pretty common things in our family kitchen. From Turtle Pecan Bars to Homemade Oatmeal Bars filled with Apple Butter to this Easy Homemade Brownie Recipe, we make many different kinds of brownies in our house!
When your dad asks for brownies and all you have are graham crackers and marshmallows? You get creative. That’s exactly what happened one cozy night at our little weekend cottage in rural Wisconsin.
I spotted some ingredients on the pantry shelf and thought—why not bring the campfire indoors?
And just like that, these easy s’mores brownies were born.
– Nate, one of the Platter Talk Kids
Why This Recipe Works
This smores brownie recipe is the perfect mash-up of two of our favorite things: rich, fudgy chocolate brownies and the classic s’mores flavors we grew up with. It starts with a box mix (for convenience), then gets elevated with chocolate chips, a crunchy graham cracker layer, and golden, gooey mini marshmallows. Whether you’re baking with kids, looking for fun brownie recipes, or just in the mood for something sweet and simple, this is the next level dessert you’ve been craving.
Variations
Want to take these smores brownies up a notch? Here are some simple ways to mix things up while keeping that classic smores flavor everyone loves:
- Add a graham cracker crust – For more crunch, press a mix of graham cracker crumbs, melted butter, brown sugar, and a touch of little flour into the bottom of the pan before pouring in your brownie batter.
- Use marshmallow fluff – Swirl in marshmallow fluff over the top of the brownies before baking for a gooey center under the marshmallow layer.
- Try dark chocolate – Swap in dark chocolate chips or chopped chocolate bars for a richer, more intense fudgy brownie layer.
- Go from brownies to cupcakes – Scoop the batter into a muffin tin to make individual smores cupcakes—just reduce the bake time slightly and top each one with a mini graham cracker square and toasted marshmallow.
- Sprinkle extra texture – Crushed nuts, crushed pretzels, or toffee bits on the top of the graham crackers add a fun crunch to every bite.
Each of these twists keeps the spirit of homemade s’mores brownies alive while letting you tailor the recipe to your taste preferences—or whatever’s in your pantry. Try one next time you bake and make these your own!
Ingredients for S’mores Brownies
These homemade s’mores brownies use a few basic pantry staples plus a few fun extras:
- 1 box of brownie mix – Any brand works. For best results, choose one that bakes up into rich, fudgy brownies.
- Eggs, water, and vegetable oil – What your box mix calls for. Use room temperature ingredients for a smoother batter.
- 2/3 cup chocolate chips – Divided. Half goes in the brownie batter, the rest melts over the top of the graham crackers.
- 5 graham crackers – Crushed. These form the graham cracker base and sprinkle topping.
- 1 cup marshmallows – We use flat ones, sliced in half for an even marshmallow layer. You can also use mini marshmallows or a swirl of marshmallow fluff for variation.
- Optional extras – Try dark chocolate chunks, natural cocoa, or a dash of vanilla extract to bump up the deep chocolate flavor.
How to Make S’mores Brownies
This recipe is easy enough for kids to help with—and yes, these make a great bake sale treat or weekend project. (Just don’t walk away from the broiler!)
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1. Make the Brownie Base
Line a square baking pan with parchment paper and spray with nonstick cooking spray. In a mixing bowl, prepare the brownie batter as directed on the box. Stir in 1/3 cup of the chocolate chips for melty pockets throughout. Pour batter into the bottom of the pan and bake as instructed.
2. Add the Graham and Chocolate Layers
Once the brownies are done, remove from oven and immediately sprinkle with 4 crushed graham cracker squares. Then add the remaining 1/3 cup of chocolate chips over the top of the graham crackers. This helps everything melt together while it’s still warm.
3. Add the Marshmallows
Lay the halved mini marshmallows or flat marshmallows in a single layer over the top. Use smaller pieces for more even coverage. Then gently press them down so they stick to the melty chocolate.
4. Broil to Toast
Place the whole pan under the broiler on the center rack. Broil on high for 1–2 minutes until the marshmallow layer is golden brown. Watch the entire time—things can go from perfect to burnt in seconds.
5. Cool, Slice & Store
Let the brownies cool completely for clean cuts. Use a sharp knife (greased or wiped clean between slices) for best results. Store leftovers in an airtight container at room temp for up to 3 days. For longer storage, wrap tightly in plastic wrap and freeze.
Tips for the Best S’mores Brownies
- Use parchment paper for easy removal and less sticking.
- Want next time to be even better? Try adding a graham cracker crust with melted butter and brown sugar at the bottom.
- Don’t overmix the brownie batter—that can create dry or cakey brownies.
- To make them extra gooey, swirl in marshmallow fluff with the chocolate chips before baking.
- Try toasting the top with a kitchen torch for more control than the broiler.
Recipe Questions and Answers
Yes! Just use your favorite fudgy brownie layer recipe, but don’t skimp on the fat content or you’ll miss out on that gooey center.
Keep your oven rack centered and your eye on the pan. The broiler should only run for 1–2 minutes max. A kitchen torch works great too.
Use an airtight container at room temp for 2–3 days, or freeze for up to 3 months with a layer of plastic wrap and foil.
Absolutely. These easy s’mores brownies are a guaranteed crowd-pleaser for school events, potlucks, or farmers markets. Cut into smaller pieces for serving.
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S’mores Brownies
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Ingredients
- 1 box brownie mix
- 1/3 cup vegetable oil
- 2/3 cup chocolate chips, divided
- 5 graham crackers, crushed
- 1 cup marshmallows, Flat and cut in half
Instructions
- Pre-heat oven to 350° F and prepare brownie mix as directed on box, adding 1/3 cup chocolate chips to the batter. Bake as directed.
- Remove from oven when brownies are done. Crush and sprinkle four graham. crackers on top of them. Sprinkle remaining 1/3 cup of chocolate chips on top of the graham crackers and brownies.
- Spread the. marshmallows evenly over the pan of brownies. Place under high broiler, using the center rack, for two minutes.
- Sprinkle remaining graham crackers over the top and allow to cool completely before cutting.
Notes
- Use parchment paper and nonstick cooking spray to prevent sticking and make cleanup easier.
- Watch the broiler closely when toasting the marshmallow layer—it only takes 1–2 minutes to turn golden brown.
- Let brownies cool completely before slicing for clean cuts and the best texture.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
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These brownies look like dessert indulgence at its best! What a great go-to recipe that would be a sure hit with any crowd! Thanks for sharing your recipe!