Brownie Cookie Dough Smores Cookies – Easy Homemade Treats

The smell of gooey brownie cookies mixed with toasted marshmallows instantly transports me to summer nights around the campfire. Honestly, these Brownie Cookie Dough S’mores Cookies are the kind of treat that makes you pause mid-bite and just savor the moment. I first came up with this recipe after a backyard barbecue, when my kids begged for s’mores but I only had a box of brownie mix and some leftover cookie dough in the fridge. You know how sometimes the best ideas come from necessity? That’s exactly what happened here.

I’ve tested this recipe over a dozen times—seriously, my neighbors are now officially obsessed. The combination of fudgy brownie cookies, buttery cookie dough, and melty marshmallow is pure magic. If you’re a fan of classic s’mores but crave something even more decadent, this recipe is about to become your new favorite. It’s perfect for busy families, teens with a sweet tooth, or anyone who loves a homemade treat that’s just a little over-the-top.

Whether you’re planning a cozy movie night, need a showstopper for your next potluck, or just want an easy, indulgent dessert, these Brownie Cookie Dough S’mores Cookies hit the spot every single time. And hey, if you’re a Pinterest lover like me, the layers in these cookies are just begging for a drool-worthy photo shoot! Trust me, you’ll want to bookmark this one.

Why You’ll Love This Recipe

• Quick & Easy: These Brownie Cookie Dough S’mores Cookies come together in under 45 minutes, so you can whip up a batch whenever the craving strikes (yes, even on a weeknight!).
• Simple Ingredients: No need for a fancy grocery run—just grab a brownie mix, store-bought or homemade cookie dough, marshmallows, and chocolate. Most of these are pantry staples, and you can swap brands or types based on what you have.
• Ultimate Party Treat: These cookies are perfect for birthdays, backyard BBQs, school bake sales, or just a cozy night in. They’re guaranteed to draw a crowd (or at least a few repeat visits to the cookie jar).
• Crowd-Pleaser: The rich, chocolatey base and creamy cookie dough filling make these a hit with kids and adults alike. I’ve yet to meet anyone who can resist them!
• Unbelievably Delicious: Think ooey-gooey, chewy, and packed with layers of flavor and texture—the brownie cookie is fudgy, the cookie dough is sweet and buttery, and the marshmallow is perfectly melty.

What sets this recipe apart? For starters, I use a simple trick: chilling the cookie dough before sandwiching it between warm brownie cookies. This keeps the dough soft but not runny and lets the flavors meld together just right. Plus, the marshmallows get that golden, campfire toastiness without needing an open flame (thank you, broiler!).

This isn’t just another s’mores spin-off—these Brownie Cookie Dough S’mores Cookies are my go-to for making dessert memories. It’s the kind of recipe you’ll find yourself making for special occasions, but also sneaking into your regular rotation because, well, who can say no?

What Ingredients You Will Need

This recipe uses classic, easy-to-find ingredients to deliver bold flavor and a seriously crave-worthy texture. If you bake often, you probably have most of these on hand. Here’s what you’ll need for the ultimate Brownie Cookie Dough S’mores Cookies:

For the Brownie Cookies:

• 1 box brownie mix (18-20 oz; I love Ghirardelli or Betty Crocker for their rich flavor)
• 1/4 cup (60 ml) vegetable oil
• 2 tablespoons (30 ml) water
• 1 large egg (room temperature)
• 1/3 cup (65 g) mini chocolate chips (optional, for extra chocolatey-ness)

For the Cookie Dough Filling:

• 1/2 cup (115 g) unsalted butter, softened
• 1/3 cup (65 g) brown sugar, packed
• 1/4 cup (50 g) granulated sugar
• 2 tablespoons (30 ml) milk (dairy or plant-based both work)
• 1 teaspoon (5 ml) pure vanilla extract
• 1 cup (120 g) all-purpose flour (heat-treated; see tips below)
• 1/2 cup (85 g) mini chocolate chips
• Pinch of salt

For the S’mores Layer:

• 10-12 large marshmallows (cut in half or use marshmallow fluff for a gooier version)
• 4 oz (115 g) milk chocolate, chopped or use classic Hershey bars (for authentic s’mores flavor)

Ingredient Notes & Tips:
– Feel free to swap regular marshmallows for vegan ones if you prefer.
– Heat-treat the flour for the cookie dough by microwaving in a bowl for 1 minute, then cooling—this removes any risk.
– You can use homemade brownie batter if you like, but box mix is faster and just as delicious.
– Almond flour works for a gluten-free version—texture will be a bit different but still yummy.
– If you want a nuttier twist, add 1/4 cup chopped toasted walnuts to the cookie dough.

Equipment Needed

• Baking sheets: Nonstick or lined with parchment paper—easy clean up, and cookies don’t stick.
• Mixing bowls: Two or three, depending on whether you’re prepping everything at once or in stages.
• Hand mixer or stand mixer: For creaming butter and sugars in the cookie dough. I’ve used a good old fork in a pinch, but a mixer makes it creamy and smooth.
• Measuring cups and spoons: Precision matters for the brownie cookies.
• Cookie scoop or tablespoon: Gets even-sized cookies (I use a medium scoop, but a spoon works too).
• Wire rack: For cooling cookies before assembling (trust me, don’t skip this—warm cookies can melt the dough too fast).
• Small saucepan or microwave-safe bowl: For melting chocolate if you want extra drizzle.
• Broiler or kitchen torch: For toasting marshmallows (oven broiler works if you don’t have a torch).

When I first made these, I used a basic sheet pan and my trusty old mixer. If you’re on a budget, parchment paper or silicone baking mats are lifesavers for cleanup. To keep your hand mixer working well, clean the beaters right after mixing—cookie dough can get sticky.

Preparation Method

1. Preheat the oven: Set to 350°F (175°C). Line your baking sheets with parchment paper for easy removal.
2. Prepare the brownie cookie dough: In a large bowl, combine 1 box brownie mix, 1/4 cup vegetable oil, 2 tablespoons water, and 1 large egg. Mix until just combined—don’t overbeat or cookies can get tough. Fold in 1/3 cup mini chocolate chips if desired.
3. Scoop and bake: Use a medium cookie scoop or tablespoon to portion dough onto baking sheets, spacing 2 inches apart. Flatten slightly with your fingers (they’ll puff up a bit as they bake). Bake for 8-10 minutes, until edges are set but centers look a tad underdone. (Cookies firm up as they cool.)
4. Cool the cookies: Transfer to a wire rack and cool completely—at least 15 minutes. Warm cookies will melt the filling too quickly!
5. Make the edible cookie dough: While cookies cool, cream together 1/2 cup butter, 1/3 cup brown sugar, and 1/4 cup granulated sugar in a bowl. Add 2 tablespoons milk and 1 teaspoon vanilla; mix well. Stir in 1 cup heat-treated flour and pinch of salt until just combined. Fold in 1/2 cup mini chocolate chips.
6. Prepare the marshmallow layer: Set your broiler to high. Place marshmallow halves on a parchment-lined baking sheet and broil for 30-60 seconds, watching closely until golden brown. (Don’t walk away—marshmallows go from perfect to burnt in a flash!) Alternatively, use a kitchen torch for even toasting.
7. Assemble the sandwich cookies: Take one brownie cookie and spread a generous tablespoon of cookie dough on the flat side. Top with a toasted marshmallow and a piece of chocolate. Press a second brownie cookie on top to create a sandwich. Repeat with remaining cookies.
8. Optional chocolate drizzle: Melt 2 oz chocolate in the microwave (20-second intervals, stirring between). Drizzle over assembled cookies for extra indulgence.
9. Chill or serve: Eat immediately for gooey marshmallow magic, or chill in the fridge for 15 minutes to set and enjoy firmer, chewier layers.

Notes: If your cookie dough feels too soft, chill it for 10 minutes before spreading. If brownie cookies spread too much, try chilling the dough for 15 minutes before baking. The marshmallow layer is best assembled quickly—keep your toasted marshmallows in a warm spot while you work. My house smells like a bakery every time I make these!

Cooking Tips & Techniques

Getting these Brownie Cookie Dough S’mores Cookies just right is all about timing and texture. Here are my favorite tips from a few trial-and-error batches:

• Don’t overbake the brownie cookies: They should look slightly underdone in the center when you pull them out. This keeps them fudgy and soft, not dry.
• Chill the cookie dough: If you want firmer filling, pop the bowl in the fridge for 10-15 minutes before assembling. It makes spreading easier and keeps the layers neat.
• Watch the marshmallows closely: Whether you use a broiler or torch, marshmallows toast fast. I’ve burned a few when distracted—keep a close eye and rotate the pan if needed for even color.
• Use parchment paper: It prevents sticking and makes cleanup a breeze. Silicone mats work too, but parchment gives more even browning.
• Space cookies evenly: Don’t crowd the baking sheet. Cookies need room to spread and bake evenly.
• Multitasking strategy: While brownie cookies bake, make the cookie dough and prep your marshmallows. You’ll save time and keep the flow going.
• Troubleshooting: If cookies are too thin, your dough might be too warm or the oven too hot. Chill the dough and check your oven temp with a thermometer.
• Lessons learned: My first batch was a mess—marshmallows melted everywhere and cookies stuck together. Now, I assemble one at a time and keep a spatula handy for lifting sandwiches onto the wire rack.

Consistency is key—don’t rush the cooling phase, and double-check your ingredient measurements. The best results happen when you let the flavors meld for a bit before digging in!

Variations & Adaptations

If you’re like me, you love experimenting with desserts. Here are some fun ways to switch up your Brownie Cookie Dough S’mores Cookies:

• Gluten-Free Version: Use a gluten-free brownie mix (King Arthur or Bob’s Red Mill are great) and swap all-purpose flour for almond flour in the cookie dough. Texture will be slightly crumblier but delicious.
• Peanut Butter Twist: Add 1/4 cup creamy peanut butter to the cookie dough and use peanut butter chips instead of chocolate chips. It’s a classic flavor combo.
• Salted Caramel: Drizzle warm caramel sauce over the marshmallow layer before sandwiching. Sprinkle with flaky sea salt for a sweet-salty finish.

Cooking Method Adjustments: If you don’t have a broiler, microwave marshmallows for 10 seconds to soften. Or use marshmallow fluff—it spreads easily and adds a gooey texture.

Allergen Substitutions: Vegan butter and plant-based milk work perfectly in the cookie dough. Vegan marshmallows (like Dandies) melt just like the classic kind. For nut allergies, skip add-ins and check labels on chocolate chips.

My personal favorite? Swapping half the chocolate chips for butterscotch chips in the cookie dough. It’s next-level sweet and a little unexpected!

Serving & Storage Suggestions

These Brownie Cookie Dough S’mores Cookies are best served slightly warm, when the marshmallow is gooey and the cookie dough is creamy. Stack them on a pretty plate or tiered tray—they look gorgeous and invite everyone to grab one (or two!).

Presentation: Dust with powdered sugar, drizzle with extra melted chocolate, or add a sprinkle of crushed graham crackers for a Pinterest-worthy finish. Pair with cold milk, iced coffee, or hot cocoa for the full s’mores experience.

Storage: Store leftovers in an airtight container at room temperature for up to 3 days. For longer storage, refrigerate up to a week; layers will firm up and flavors will meld. Freeze for up to 2 months—just wrap each sandwich cookie individually in wax paper and pop in a freezer bag.

Reheating: Warm cookies in the microwave for 10-15 seconds to revive the gooey marshmallow. Or let them sit at room temp before enjoying. Flavors deepen as they rest, so the second-day cookies are even richer!

Nutritional Information & Benefits

Each Brownie Cookie Dough S’mores Cookie packs about 320 calories, 18g fat, 40g carbs, and 4g protein. They’re definitely a treat, but the portion size is just right for satisfying a sweet tooth.

Key Ingredients Benefits: Cocoa in the brownie cookies provides antioxidants, while the marshmallows deliver that classic comfort food feeling. If you use almond flour or plant-based milk, you’ll add a little extra fiber and healthy fats.

Dietary Considerations: Easy to adapt for gluten-free or dairy-free diets with simple swaps. Contains wheat, dairy, and egg, so check labels if allergies are a concern.

From a wellness perspective, I love that these cookies are made with real, simple ingredients—no preservatives, and you control the sweetness. For me, dessert is about joy and sharing, and these cookies deliver every time.

Conclusion

If you’re searching for a dessert that’s easy, totally irresistible, and guaranteed to spark joy, these Brownie Cookie Dough S’mores Cookies are it. They bring together the best parts of brownies, cookie dough, and s’mores, all in one epic bite.

Honestly, I love this recipe because it’s fun to make, even more fun to eat, and always brings a smile to anyone who tries it. You can customize every layer to suit your tastes, and they’re perfect for sharing with friends or family.

Give this recipe a try, and let me know what twists you add—did you go for caramel drizzle, peanut butter, or vegan marshmallows? Drop a comment below and share your s’mores cookie story! I can’t wait to see your Pinterest-worthy creations. Happy baking!

FAQs

Can I use homemade brownie batter instead of boxed mix?

Absolutely! Just use your favorite fudgy brownie recipe and follow the same baking instructions. Keep an eye on the baking time, as homemade batter may differ a bit.

How do I heat-treat flour for edible cookie dough?

Spread flour on a baking sheet and bake at 350°F (175°C) for 5 minutes, or microwave in a bowl for 1 minute. Let it cool before using—this makes it safe to eat raw.

Can I make these cookies ahead of time?

Yes! Assemble, then store in the fridge for up to a week or freeze for up to 2 months. They taste great chilled or slightly warmed.

What’s the best way to toast marshmallows without a broiler?

You can use a kitchen torch for a quick, even toast. If you don’t have one, microwave marshmallows for 10 seconds until soft, or use marshmallow fluff for a gooey layer.

Are these cookies suitable for gluten-free or vegan diets?

Definitely! Use gluten-free brownie mix and almond flour, plus vegan butter, milk, and marshmallows. They’ll be just as delicious and everyone can enjoy!

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