This S’more Brownies Recipe is a fudgy and gooey recipe, which is made with a graham cracker crust and a toasted marshmallow topping. It’s the ultimate comfort food recipe, ready in about 1 hour and 30 minutes.
S’more Brownies Recipe Ingredients
Crust:
- 6 tablespoons unsalted butter, melted
- 1 1/2 cups crushed graham cracker crumbs
- 2 tablespoons sugar
- Pinch fine salt
Brownie:
- 8 tablespoons (1 stick) unsalted butter
- 4 ounces unsweetened chocolate, chopped
- 1 cup packed light brown sugar
- 3/4 cup white sugar
- 1 1/2 teaspoons pure vanilla extract
- 1/2 teaspoon fine salt
- 4 large cold eggs
- 1 cup all-purpose flour
Topping:
- 4 cups large marshmallows
How To Make S’more Brownies Recipe
- Prepare the oven and pan: Position a rack in the lower third of the oven and preheat to 325°F. Line an 8×8-inch square baking pan with foil, leaving an overhang on the sides to use as handles later. Lightly butter the foil.
- Make and bake the crust: In a medium bowl, stir together the graham cracker crumbs, sugar, salt, and melted butter. Press the mixture evenly over the bottom of the prepared pan. Bake for 20 minutes until golden brown.
- Melt the chocolate: While the crust bakes, melt the 1 stick of butter and the unsweetened chocolate in a microwave-safe bowl or in a heatproof bowl set over a saucepan of simmering water.
- Make the brownie batter: Stir the brown sugar, white sugar, vanilla, and salt into the melted chocolate mixture. Add the cold eggs one at a time, beating vigorously after each addition until the batter is thick and glossy. Stir in the flour until just incorporated.
- Bake the brownies: Pour the batter over the baked graham cracker crust. Bake for 40 to 45 minutes, until the top is crispy and a toothpick inserted into the middle comes out with a few moist crumbs.
- Toast the marshmallow topping: Remove the brownies from the oven and preheat the broiler on low. Arrange the marshmallows in a single layer across the top of the hot brownies. Place under the broiler for about 2 minutes, watching carefully, until the marshmallows are golden brown and toasted.
- Cool and serve: Let the brownies cool completely on a wire rack. Use the foil overhang to lift them out of the pan before cutting into squares.

Recipe Tips
- How to get a fudgy brownie? The secret to a fudgy texture is using melted butter and chocolate and being careful not to overmix the batter once the flour is added. The use of cold eggs also helps create that dense, fudgy result.
- How to get perfectly toasted marshmallows? The broiler works very quickly. Do not walk away! Keep a close eye on the marshmallows the entire time they are under the broiler, as they can go from golden to burnt in a matter of seconds.
- Can I make these ahead of time? Yes, these brownies are great for making ahead. You can bake and cool them completely, then store them in an airtight container. For the best gooey marshmallow topping, it’s best to add and toast the marshmallows just before serving.
- How do I get clean cuts? For the cleanest slices, make sure the brownies are completely cool. A plastic knife often works surprisingly well for cutting through the sticky marshmallow layer without tearing it.
What To Serve With S’more Brownies
These are an incredibly rich and complete dessert on their own.
- A tall glass of cold milk is the perfect companion.
- A scoop of vanilla bean ice cream.
- A hot cup of black coffee to balance the sweetness.
How To Store S’more Brownies
- Room Temperature: Store the brownies in an airtight container at room temperature. They will keep for up to 3 days. The marshmallow topping will become stickier over time.
S’more Brownies Nutrition Facts
- Calories: 450 kcal
- Carbohydrates: 60g
- Protein: 6g
- Fat: 22g
- Saturated Fat: 13g
- Sodium: 200mg
- Fiber: 3g
- Sugar: 45g
Nutrition information is estimated and may vary based on ingredients and cooking methods used.
FAQs
Why are the eggs added cold?
Adding cold eggs to the warm chocolate batter helps to create a dense, fudgy texture rather than a light, cakey one. It shocks the batter slightly, preventing too much air from being incorporated.
What kind of chocolate is best for the brownie batter?
Unsweetened chocolate is specified in the recipe. It provides a deep, rich chocolate flavor that is balanced by the sugar in the recipe. Using a sweeter chocolate would result in an overly sweet brownie.
Can I make these without a microwave?
Yes. You can easily melt the butter and chocolate for the brownie batter in a double boiler or a heatproof bowl set over a saucepan of gently simmering water.
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S’more Brownies Recipe
Description
The ultimate gooey and fudgy brownie with a crunchy graham cracker crust and a perfectly toasted marshmallow topping, capturing all the flavors of a classic campfire s’more.
Ingredients
Instructions
- Preheat oven to 325°F. Mix all crust ingredients and press into a foil-lined 8×8 pan. Bake for 20 minutes.
- Melt butter and chocolate together. Stir in sugars, vanilla, and salt.
- Beat in cold eggs one at a time until the batter is thick and glossy. Stir in flour.
- Pour batter over the baked crust and bake for 40-45 minutes.
- Top the hot brownies with marshmallows and broil for 2 minutes until toasted.
- Cool completely before lifting from the pan and slicing.
Notes
- Using cold eggs is a key step for achieving a dense, fudgy brownie texture.
- Watch the marshmallows very carefully under the broiler, as they can burn in seconds.
- Let the brownies cool completely for the cleanest cuts, especially through the sticky marshmallow layer.
- Lifting the brownies out of the pan using the foil overhang makes slicing much easier.