If you’re craving the chocolatey, gooey magic of s’mores and can’t decide between brownies and cookies, these Easy S’mores Brookie Bars are pure dessert bliss. Each bite is a celebration of textures: fudgy brownie, melty chocolate chips, crunchy graham crackers, and golden marshmallows, all topped with a soft, chewy cookie layer. It’s a crowd-pleasing treat that brings the nostalgia of campfires right into your kitchen—no tent required! Whether for a potluck, bake sale, or a cozy night in, these bars will steal the show.

Easy S'mores Brookie Bars Recipe - Recipe Image

Ingredients You’ll Need

One of the best things about Easy S’mores Brookie Bars is how effortless the ingredient list is, relying on pantry staples that come together to create something utterly irresistible. Each ingredient has its own delicious role, building layers of flavor and texture that make these bars unforgettable.

Brownie Mix: Use your favorite 16 oz package, prepared as directed, for a quick, chocolatey base.
All-Purpose Flour: Gives the cookie dough body and structure, keeping it chewy rather than cakey.
Baking Soda: Helps the cookie dough rise a bit and get that perfect bite.
Kosher Salt: Balances the sweetness and enhances all the other flavors.
Unsalted Butter (melted): Adds richness and ensures a tender, moist cookie layer.
Packed Light Brown Sugar: Lends a deep, caramel-like sweetness to the cookie dough.
Granulated Sugar: Sweetens and helps the cookies get those crisp edges.
Vanilla Extract: Gives warmth and classic cookie flavor.
Egg + 1 Egg Yolk (room temperature): Adds moisture and richness, keeping the cookie dough extra soft.
Graham Crackers: The graham layer channels classic s’mores flavor and adds crunch.
Semisweet Chocolate Chips: Melty pools of chocolate punctuate every bite and amplify that s’mores theme.
Jumbo Marshmallows: These create gooey, toasty pockets that set this dessert apart.
Refrigerated Chocolate Chip Cookie Dough (shortcut option): For when you want all the goodness in even less time—just press and bake!

How to Make Easy S’mores Brookie Bars

Step 1: Gather and Prep Your Ingredients

Start by making sure you have all the ingredients on hand and your oven preheated to 350 degrees Fahrenheit. If you’re making the cookie dough from scratch, let your eggs and butter come to room temperature for the best results.

Step 2: Make the Brownie Batter

Prepare the brownie batter just as the box instructs, and set it aside. This will be your base layer and gives these Easy S’mores Brookie Bars their signature fudgy bite.

Step 3: Mix Up the Cookie Dough

In a mixing bowl, whisk the flour, baking soda, and kosher salt together. In another bowl, blend the melted butter with both sugars until well combined. Add the vanilla, egg, and egg yolk, beating until creamy and pale. Fold in the dry ingredients and, finally, stir in those glorious chocolate chips. Don’t overmix; just combine until everything’s incorporated.

Step 4: Layer Brownie and S’mores Goodies

Butter a 13×9-inch baking dish and pour in the brownie batter, smoothing it into an even layer. Next, lay out the graham cracker sheets to cover the brownie batter, and then scatter the jumbo marshmallows evenly on top. These foundational layers are what give Easy S’mores Brookie Bars their playful, camp-inspired magic!

Step 5: Top with Cookie Dough

Tear or flatten pieces of the cookie dough and gently cover the marshmallow layer. Don’t worry about making it perfect—the rustic look is what makes brookies so fun!

Step 6: Bake to Golden Perfection

Pop the pan in the oven and bake for 35 to 40 minutes, checking with a toothpick. If the top looks like it’s browning too much before the bars are fully baked, tent the pan with foil. For neat slices, let the bars cool completely in the pan before cutting—though no one will blame you for digging in while warm!

Step 7: Shortcut Method for Busy Days

If you’re short on time or energy, use two packages of refrigerated chocolate chip cookie dough in place of homemade. Just press or flatten the dough over the marshmallow layer and bake as directed. It’s still every bit as delicious, with minimal effort.

How to Serve Easy S’mores Brookie Bars

Garnishes

Add an extra flourish by sprinkling a handful of mini chocolate chips or crushed graham cracker crumbs over the bars right as they come out of the oven. For serious decadence, drizzle melted chocolate across the tops or pop a few extra marshmallow pieces on while they’re still warm.

Side Dishes

Pair your Easy S’mores Brookie Bars with a scoop of vanilla or salted caramel ice cream for the ultimate dessert plate. A tall glass of icy milk or a mug of hot cocoa is perfect for rounding out the gooey richness and creating those classic campfire vibes.

Creative Ways to Present

Cut the bars into rustic squares for a casual gathering, or use a round biscuit cutter for a more playful, party-worthy shape. If you’re feeling extra, serve the bars slightly warm in individual bowls, topped with a toasted marshmallow and a drizzle of chocolate sauce—guests will think you went to pastry school!

Make Ahead and Storage

Storing Leftovers

Keep Easy S’mores Brookie Bars stored in an airtight container at room temperature for up to three days. The bars stay delicious and chewy, making them perfect for lunchboxes or snacking throughout the week.

Freezing

For longer storage, place the cooled and cut bars in a freezer-safe bag or container with parchment between layers. You can freeze these for up to two months. When you’re ready for a treat, just let them thaw at room temperature or give them a quick warm-up in the microwave.

Reheating

To bring back that gooey, just-baked magic, pop a bar or two in the microwave for 10-15 seconds. The marshmallows will melt and the chocolate turns wonderfully soft, delivering that fresh-from-the-oven taste every time.

FAQs

Can I use homemade cookie dough instead of refrigerated?

Absolutely! Making your own cookie dough gives you full control over ingredients and a fresher flavor profile, but the refrigerated dough shortcut works beautifully when time is short.

How do I keep the marshmallows from melting away completely?

Jumbo marshmallows hold up better than mini ones during baking, but don’t worry if some melt into the brownies—that gooey texture is exactly what you want from Easy S’mores Brookie Bars!

Can I make these gluten free?

Yes, simply swap out regular graham crackers, cookie dough, and brownie mix for certified gluten-free versions. Be sure to check labels for traces of gluten in marshmallows, too.

What’s the best way to cut the bars cleanly?

Let the bars cool completely in the pan; then use a sharp, greased knife for the tidiest results. Wipe the blade between cuts to avoid sticking.

Are Easy S’mores Brookie Bars good for parties?

They’re perfect for gatherings! The bars can be made ahead and cut into any size, from hearty squares to bite-size pieces for buffets or dessert platters.

Final Thoughts

Get ready to win hearts and satisfy cravings with these Easy S’mores Brookie Bars. If you’re looking for a dessert that’s as fun to make as it is to eat, you simply can’t go wrong. Grab those ingredients and treat yourself and your loved ones—you’re in for a seriously delicious adventure!