S’mores Brownies with Meringue for the Ultimate Campfire Craving

There’s something about a warm summer night, sticky fingers, and the smell of toasted marshmallow that just feels right. These s’mores brownies with meringue bring that campfire magic straight into your kitchen—no smoke, no ash, just pure gooey bliscker crust, a dense chocolate center, and a cloud of toasted marshmallow meringue on top.

Instead of juggling skewers over a flame, you bake one pan of s’mores brownies with meringue, slice into squares, and watch everyone dive in. They’re dramatic enough for a party platter but simple enough for a lazy weekend baking session.

Why these s’mores brownies with meringue are next-level

Regular brownies are great. Classic s’mores are nostalgic. But stack those ideas into layers and you get something that feels way more special without adding much effort.

First, there’s the graham cracker crust. It brings that familiar campfire cookie snap, but the butter and sugar help it hold together in tidy squares. No crumbs all over the floor when you pick one up.

Next, the brownie layer bakes directly on top of the crust. It’s fudgy, not cakey, with cocoa, melted chocolate, and a mix of white and brown sugar for depth. You still cut it like a brownie, but every bite tastes like a campfire chocolate bar tucked into a bar cookie.

Finally, the star: marshmallow meringue. Instead of bagged marshmallows, you whip egg whites with sugar over gentle heat, then beat them into glossy peaks. When you swirl that over the cooled brownies and toast the top, you get a topping that tastes like a lightly browned marshmallow but slices much more cleanly than melted bags of mallows.

Here’s a quick overview of the layers and what they bring to the party:

Layer	What it adds
Graham cracker crust	Crunch, honeyed flavor, and structure so the bars slice cleanly.
Fudgy brownie center	Rich chocolate base that keeps everything moist and indulgent.
Toasted meringue topping	Soft, marshmallow-like topping with caramelized edges when torched or broiled.

These bars feel right at home on a summer potluck table, but they’re just as good on a winter dessert tray. If you love themed brownies, you’ll also be right at home with rich <a href=”https://www.greasycow.com/red-velvet-brownies/”>Red Velvet Brownies</a> for those red-and-white dessert boards.

Ingredients for s’mores brownies with meringue (and why they work)

We’ll build this recipe in three parts: crust, brownie, and meringue. You’ll bake everything in an 8×8-inch pan, which gives you 16 good-sized squares.

For the graham cracker crust

• 1 ½ cups (150 g) graham cracker crumbs
• ¼ cup (50 g) packed light brown sugar
• 6 tablespoons (85 g) unsalted butter, melted
• ¼ teaspoon fine sea salt

The crumbs and brown sugar mimic the graham flavor from a campfire s’more, while the melted butter binds the crust and helps it crisp slightly in the oven.

For the fudgy brownie layer

• ½ cup (115 g) unsalted butter
• 4 ounces (115 g) semi-sweet or bittersweet chocolate, chopped
• ¾ cup (150 g) granulated sugar
• ¼ cup (50 g) packed light brown sugar
• 2 large eggs, room temperature
• 2 teaspoons vanilla extract
• ⅓ cup (35 g) unsweetened cocoa powder
• ¾ cup (95 g) all-purpose flour
• ½ teaspoon fine sea salt
• ¼ teaspoon baking powder
• Optional: ½ cup (85 g) chocolate chips or chopped milk chocolate for extra pockets of goo

Using both granulated and brown sugar gives the brownies a deeper flavor and softer chew. Cocoa plus melted chocolate creates that glossy, dense center you expect in really good brownies—something you’ll also see in other rich brownie styles like Boston Girl Bakes’ version and similar recipes.

For the marshmallow meringue topping

• 4 large egg whites, room temperature
• 1 cup (200 g) granulated sugar
• ¼ teaspoon cream of tartar
• 1 teaspoon vanilla extract

Cream of tartar helps the meringue whip up quickly and stay stable, so your swirls hold up after toasting. Many modern s’mores brownie recipes use this same approach—a simple Swiss meringue heated over simmering water, then whipped until it’s billowy and glossy.

Ingredient swaps and variations

• Chocolate: Use semi-sweet for a classic balance, or go darker if you like a more intense bar. A mix of chopped chocolate and cocoa gives the best texture.
• Crust: Honey grahams taste most nostalgic, but cinnamon grahams add a cozy twist.
• Flour: Stick with all-purpose here for predictable results. If you want something more dramatic and red, you can always explore recipes like <a href=”https://www.greasycow.com/decadent-red-velvet-cheesecake-brownies/”>Decadent Red Velvet Cheesecake Brownies</a> on another day.
• Add-ins: Fold in mini chocolate chips or chopped milk chocolate for little nuggets of meltiness through the brownie layer.

Step-by-step: making s’mores brownies with meringue

You’ll bake in three stages: crust, brownie, then meringue.

1. Prep the pan and oven

1. Preheat your oven to 350°F (177°C).
2. Line an 8×8-inch pan with parchment, letting it overhang on two sides for easy lifting. Lightly grease the parchment.

2. Make and bake the graham cracker crust

1. Stir together graham cracker crumbs, brown sugar, salt, and melted butter until the mixture looks like damp sand.
2. Press the mixture firmly into the bottom of the pan. Use the bottom of a measuring cup to compact it into an even layer.
3. Bake for 8 minutes, then set the pan aside while you mix the brownie batter.

This quick bake helps the crust set so it doesn’t float up into the brownie batter.

3. Mix the fudgy brownie batter

1. Place the butter and chopped chocolate in a heatproof bowl set over a pot of barely simmering water. Stir until melted and smooth, then remove from heat and cool slightly.
2. In a separate bowl, whisk together the granulated sugar, brown sugar, eggs, and vanilla until the mixture looks pale and slightly thick.
3. Whisk the melted chocolate mixture into the sugar mixture until smooth.
4. Sift in flour, cocoa powder, salt, and baking powder. Switch to a spatula and fold just until no dry streaks remain.
5. If using, fold in the chocolate chips.

You want to avoid overmixing so the brownies stay fudgy, not cakey. That gentle folding is one reason layered brownies like this taste so luxurious.

4. Bake the brownies on the crust

1. Pour the brownie batter over the warm crust and spread it into an even layer.
2. Bake for 22–27 minutes, until the edges look set and a toothpick inserted in the center comes out with moist crumbs, not wet batter.
3. Cool the pan completely on a wire rack. This can take about an hour, but it’s worth the wait—if the brownies are warm, the meringue can slide right off.

This same “moist crumbs on the toothpick” test also shows up in other brownie recipes for a reason: it’s one of the most reliable signs you’re getting that fudgy center without underbaking.

5. Make the marshmallow meringue topping

Here we use a Swiss meringue method, which combines egg whites and sugar over gentle heat, then whips them until they’re thick and glossy.

1. Add egg whites, sugar, and cream of tartar to the clean, grease-free bowl of a stand mixer or a large heatproof mixing bowl.
2. Set the bowl over a pot of simmering water (the bottom of the bowl should not touch the water). Whisk constantly until the sugar dissolves and the mixture feels very warm to the touch. If you have a thermometer, you’re aiming for about 160°F (71°C), a temperature widely recommended for egg mixtures to be considered safe.
3. Move the bowl to the mixer fitted with the whisk attachment. Beat on medium-high speed for 5–7 minutes, until the meringue is thick, glossy, and holds stiff peaks.
4. Add vanilla and beat just until combined.

If the peaks look droopy or grainy, keep whipping for another minute or two. A clean bowl with no trace of grease makes all the difference here—this is a common tip across reliable meringue-based recipes.

6. Top and toast

1. Spread the meringue over the cooled brownies, swirling the top with the back of a spoon or an offset spatula.
2. Toast the top one of two ways:
   • Kitchen torch: Hold the flame a few inches above the meringue and move it constantly until peaks turn golden brown.
   • Broiler: Place the pan on the lowest oven rack and broil for 1–2 minutes, watching closely. Rotate the pan as needed so the meringue browns evenly without burning.

Let the bars sit for at least 15 minutes so the topping sets slightly before slicing.

Serving, storing, and customizing s’mores brownies with meringue

You baked a pan of showstoppers—now let’s keep them that way.

How to slice clean squares

• Use a sharp, hot knife: Run the knife under hot water, wipe it dry, then press straight down through the brownies.
• Wipe the blade between cuts so you don’t drag crumbs and meringue down the sides of each square.
• Cut into 16 smaller bars for parties, or 9 large ones when you want something extra indulgent.

This trick pairs nicely with other bar desserts, too—like the way you’d clean the knife between slices of layered bars or cheesecake brownies.

How to store s’mores brownies with meringue

You’ve probably seen a range of storage advice on s’mores brownies across blogs, but here’s a simple plan inspired by common recommendations.

• Room temperature: Keep the brownies in a single layer in an airtight container for up to 1 day, especially if your kitchen is cool. The crust stays crisp and the meringue stays soft.
• Fridge: For longer storage, refrigerate them (again in a single layer) for up to 3–4 days. Let them sit at room temperature for 10–15 minutes before serving so the brownie softens a bit.
• Freezer: For a longer stretch, freeze individual squares on a tray until solid, then wrap each square and store them in a freezer bag for up to a month. Thaw in the fridge, then bring to room temperature.

Because the topping uses cooked meringue and the bars are quite rich, they actually hold up better than you might expect.

Make-ahead and transport tips

• Bake the crust and brownie a day ahead, cool completely, then wrap the pan well and refrigerate. Add the meringue and toast the day you plan to serve for the fluffiest look.
• To transport, keep the bars uncut in the pan, cover loosely with foil or a tall cake carrier lid, and slice them once you arrive.
• For picnic or potluck duty, cut them slightly smaller. People can always grab a second piece.

If you want a more festive spin, you can decorate the toasted meringue with a few chocolate shards or graham crumbs, similar to how <a href=”https://www.greasycow.com/frosted-christmas-brownies-recipe/”>Frosted Christmas Brownies</a> lean into topping and decoration for holiday flair.

Fun variations

Once you’ve nailed these s’mores brownies with meringue, you can:

• Swap some of the chocolate for chopped peanut butter cups.
• Add a thin layer of caramel between crust and brownie.
• Sprinkle flaky sea salt over the toasted meringue.
• Serve them alongside cheesecake-style bars like <a href=”https://www.greasycow.com/lemon-blueberry-cheesecake-bars/”>Lemon Blueberry Cheesecake Bars</a> for a mixed dessert tray.

And any time you’re craving something sweet and impressive but don’t want to fuss, browsing the <a href=”https://www.greasycow.com/category/dessert/”>Dessert</a> category is a very smart move.

Wrap-Up

Once you’ve made these s’mores brownies with meringue once, you’ll start inventing excuses to bake them again: birthday parties, cookouts, rainy weekends, you name it. That crunchy graham base, fudgy middle, and toasted marshmallow crown feel like a campfire dessert that got all dressed up. Bake a pan, slice generous squares, and then explore other brownie mash-ups like <a href=”https://www.greasycow.com/peppermint-brownie-cookies/”>Peppermint Brownie Cookies</a> the next time a chocolate craving hits.

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