If you enjoy campfire s’mores and chewy brownies, then this s’mores brownie recipe will be a real treat! This easy recipe uses boxed brownie mix as the base, topped with layers of classic s’mores ingredients—graham crackers, chocolate bars, and gooey marshmallows.
Two Desserts In One: Samores Brownies Recipe
If you’re anything like me and can’t resist the gooey magic of campfire s’mores or a rich, fudgy brownie, then you’re going to love this s’mores brownie recipe! It’s like the best of both worlds: layers of graham crackers, melty chocolate, and toasted marshmallows all on top of a chewy brownie base. And the secret? A boxed brownie mix keeps things simple, so you can whip these up without spending all evening in the kitchen.
I’ve made these for family movie nights and casual get-togethers, and they’re always a hit. Whether you’re craving a quick weeknight treat or need a crowd-pleasing dessert in a pinch, these s’mores brownies deliver that nostalgic, campfire flavor—no fire pit required! Trust me, once you try them, you’ll want to make them again and again.
Love these s’mores brownies? Try the Layered Banana Pudding Brownies, No-Bake Chocolate Peanut Butter Pie, or Brownie Batter Dip for more easy, crowd-pleasing treats. Each one is simple, delicious, and guaranteed to bring smiles!
Ingredients You Will Need
Chocolatey Brownie Layer Base:
- Box of brownie mix (I recommend a fudgy brownie mix; however, you can choose your favorite brand)
- Ingredients required on the box (typically eggs, oil, and water)
For the S’mores Layers:
- graham crackers
- chocolate bars (milk chocolate works best for melting)
- large marshmallows
📝 Note: You can find the full recipe with ingredients and measurements in the recipe card located at the bottom of this post.
Homemade Brownies Instead of Boxed
If you’d rather skip the boxed mix, you can easily make these s’mores brownies from scratch using my Moist Cake Brownie Recipe. It’s rich, fudgy, and the perfect base for layering graham crackers, chocolate, and marshmallows. This homemade option adds an extra special touch while keeping all the nostalgic, gooey goodness of a classic s’mores treat.
How To Make Smores Brownies
This is an easy and quick recipe to make using a box of brownie mix and classic smores toppings.
1
Make the Brownie Base
To make this recipe super easy, start with a fudgy boxed brownie mix. Mix and bake according to the box directions in a 10 x10 baking dish.
2
Prepare The S’mores Topping
While the brownies are baking, I like to use the time to prep the s’mores topping. Start by breaking graham crackers into bite-sized pieces, then do the same with your chocolate bars. Be sure to save about nine pieces of chocolate to decorate the top after everything has melted. Next, grab some kitchen scissors and cut the large marshmallows in half so they’ll be ready to go when the brownies come out of the oven.
3
Add The Samores Topping
When the brownies come out of the oven, I let them cool for about five minutes before diving into the fun part—adding the s’mores topping! Start by spreading the broken graham crackers evenly across the surface, followed by the marshmallow halves and chocolate pieces. This step is where the magic happens, so don’t worry about perfection—just make sure every bite will have a little of each topping!
4
Toasting the Smores Brownie Topping
Now, switch your oven to the low broil setting. Carefully put the brownies back in and keep a close eye on them, checking every 60 seconds or so. The marshmallows will toast quickly, so don’t walk away—they should get a nice golden brown. As soon as they do, take the brownies out of the oven.
Gina’s Tips For Recipe Sucess
- Don’t overbake the brownies: When you add the graham crackers and toppings, ensure the brownies are not overbaked. Note that since they are going back into the oven for a few minutes, they might bake a little bit more.
- Broiling is quick: Always keep an eye on the marshmallows when broiling, as they can burn in seconds.
Creative Variations of S’mores Brownies
- Peanut Butter Twist: Drizzle a layer of warm, melted peanut butter over the brownies before adding the gram crackers, chocolate, and marshmallows for a Reese-inspired treat.
- Salted Caramel S’mores Brownies: For a sweet and salty variation, drizzle caramel sauce over the melted s’more topping.
Yes! If you prefer homemade brownies, simply substitute your favorite brownie recipe for the boxed mix.
Classic milk chocolate is the traditional choice, but dark chocolate or even caramel-filled chocolate bars work great.
Storing Your Leftovers
S’mores brownies are best enjoyed fresh but can be stored in an airtight container at room temperature for up to 3 days. If you’d like to store them longer, place them in the refrigerator for up to 1 week. To reheat, microwave individual brownies for about 10-15 seconds to soften the marshmallow layer.
Dessert Recipes
⚖️ Need a big batch to feed a crowd? You can easily change the number of servings in the recipe card below by tapping 2x or 3x. The ingredient measurements will automatically double or triple. You can then tap print and there you have it, a recipe for a crowd.
Do you have a question?
Do you have a question about this recipe❓ I will answer in the comment form below👇🏼 the recipe card. Did you make this recipe? If so, could you be a gem and leave a comment and rating ⭐️⭐️⭐️⭐️⭐️ below? This helps others find yummy 😋 recipes to make for their family and friends.
Easy S’mores Brownie Recipe
Note: Be sure to read through the recipe’s post for tips and details about this recipe.
Ingredients
- 1 box chocolate fudge brownie mix, 18.4 oz – Plus ingredients required on the box. Typically eggs, oil, and water
- 9 graham crackers, broken into bite-sized pieces
- 4 chocolate bars, 1.55 oz each, milk chocolate recommended
- 4 cups large marshmallows, cut in half
Instructions
Prepare the Brownie Mix
- Preheat your oven to 350°F (175°C).
- In a large bowl, prepare the brownie mix according to the package instructions. This typically involves mixing the brownie mix with eggs, oil, and water.1 box chocolate fudge brownie mix
- Line a 10×10 baking dish with parchment paper or grease it with nonstick cooking spray.
- Pour the brownie batter into the prepared dish, spreading it evenly.
- Bake the brownies as directed on the box (usually 25–30 minutes) or until a toothpick inserted in the center comes out with a few moist crumbs. Baking times may vary by oven.
Prepare the Smores Topping
- While the brownies are baking, break the graham crackers into small bite-sized squares.9 graham crackers
- Break the chocolate bars into individual squares. Set aside 9 pieces for garnish after melting.4 chocolate bars
- Cut the marshmallows in half using kitchen scissors.4 cups large marshmallows
Top the Brownies
- Once the brownies are baked, remove them from the oven and let them cool for 5 minutes.
- Sprinkle the broken gram crackers, marshmallows, and chocolate squares evenly on top of the baked brownies, ensuring the entire surface is covered.
- Turn the oven to low broil and place the s'mores-topped brownies back in. Check the progress of melting and toasting the marshmallows every 60 seconds. Do not leave the oven because the marshmallows can burn in a moment. Once they are toasted light brown, remove the pan of brownies from the oven.
- You can serve the brownies warm and gooey or allow them to cool and slice into squares.
Notes
- Don’t overbake the brownies: When you add the graham crackers and toppings, ensure the brownies are not overbaked. Note that since they are going back into the oven for a few minutes, they might bake a little bit more.
- Broiling is quick: Always keep an eye on the marshmallows when broiling, as they can burn in seconds.
