Peanut Butter S’mores Sandwich Cookies Recipe

If you’re searching for a playful treat that will transport you straight to cozy campfires and childhood summer nights, look no further—these Peanut Butter S’mores Sandwich Cookies hit every note! Imagine chewy, tender peanut butter cookies, stuffed with gooey marshmallows and melty chocolate, coming together in a combo that’s equal parts nostalgia and pure indulgence. This recipe makes a small batch, but it’s hard to stop at just one—they’re just that irresistible.

Ingredients You’ll Need

This recipe keeps things delightfully simple, using a handful of staples you probably already have in your kitchen. Each ingredient brings its own personality to these cookies, creating a symphony of flavors and textures that’s impossible to resist.

Creamy peanut butter: Provides that signature nutty richness and chewy texture. Choose a classic, no-stir variety for the best result.
Butter, softened: Lends a decadent, melt-in-your-mouth quality to the cookies and enhances their flavor.
Brown sugar: Adds moisture and a slight caramel note, keeping the cookies soft and flavorful.
Egg: Binds everything together and gives structure to the dough.
Vanilla extract: This little splash rounds out the flavors and adds warmth.
All-purpose flour: Forms the base of the cookie, holding everything together and giving the perfect crumb.
Baking soda: Ensures the cookies puff up just right—no dense hockey pucks here!
Pinch of salt: Balances sweetness and sharpens all the other flavors.
Chocolate chips or squares: Choose your favorite chocolate—classic milk, bold dark, even a fun swirled variety—all will melt beautifully into the sandwich.
Marshmallows: The secret to that sticky, gooey s’mores magic. Halve the marshmallows to get just the right ratio in every bite.

How to Make Peanut Butter S’mores Sandwich Cookies

Step 1: Cream Together the Wet Ingredients

Start by combining your creamy peanut butter, softened butter, and brown sugar in a large mixing bowl. Use a hand mixer or sturdy spoon to blend everything until luscious and smooth—this step ensures the cookies have that soft, tender bite that makes Peanut Butter S’mores Sandwich Cookies so crave-worthy.

Step 2: Add the Egg and Vanilla

Next, crack in your egg and pour in the vanilla extract. Beat these in until your batter is silky and combined, with no streaks of egg showing. This helps hold the cookies together and boosts the warm, comforting flavor that makes these sandwich cookies extra special.

Step 3: Mix in the Dry Ingredients

Gently stir in the flour, baking soda, and a pinch of salt. Be careful not to overmix—just enough so that the dough comes together and looks uniform. Now you’ve got the perfect peanut butter cookie dough foundation for the Peanut Butter S’mores Sandwich Cookies magic!

Step 4: Shape and Bake the Cookies

Scoop out small portions of dough (about a tablespoon each), rolling them into balls and arranging them on a parchment-lined baking sheet. Flatten them slightly with your hand—they’ll spread just a bit. Pop the tray into a preheated 350°F (175°C) oven and bake for 8 to 10 minutes, until the edges are golden and the tops look just set.

Step 5: Cool and Prepare the Fillings

Let the cookies cool for a few minutes on the tray, then transfer to a rack so they don’t overbake. Meanwhile, grab your chocolate chips or squares and prep your halved marshmallows—these are about to become gooey goodness sandwiched between two chewy cookies.

Step 6: Assemble the Sandwich Cookies

Place a piece of chocolate and a halved marshmallow on the flat side of one cookie, then top with another cookie. Gently warm your assembled sandwich in the oven for just a minute or two, or a few seconds in the microwave, until the marshmallow puffs and the chocolate starts to melt. Press lightly—and there you have it, your very own Peanut Butter S’mores Sandwich Cookies, ready to devour!

How to Serve Peanut Butter S’mores Sandwich Cookies

Garnishes

For that bakery-worthy flourish, try drizzling each sandwich with a bit of melted chocolate or a sprinkle of crushed graham crackers. A dusting of powdered sugar adds a snowy effect, or, for an extra-indulgent touch, dip half of each cookie sandwich into melted chocolate and let set.

Side Dishes

Pair your Peanut Butter S’mores Sandwich Cookies with a tall glass of cold milk, a creamy vanilla milkshake, or, for grown-ups, a frothy cappuccino. If you want something refreshing, sliced strawberries or orange wedges add a nice fruity balance to all that gooey richness.

Creative Ways to Present

Pile your sandwich cookies on a rustic platter for sharing at a picnic, or serve individually on small dessert plates with mini napkins for an elevated touch. For a party, stack them on skewers or tuck them into mini treat bags as fun edible favors—these will be the star of any dessert table!

Make Ahead and Storage

Storing Leftovers

Once cooled and assembled, Peanut Butter S’mores Sandwich Cookies can be stored in an airtight container at room temperature for up to two days. The marshmallow will stay soft, and the chocolate holds everything together—just be sure to separate layers with parchment so they don’t stick.

Freezing

Want to prepare ahead? Freeze the unfilled cookies in a single layer until firm, then transfer to a freezer bag for up to two months. Thaw at room temperature, assemble with fresh marshmallow and chocolate, then warm just before serving for that dreamy meltiness.

Reheating

To revive any leftover or chilled sandwich cookie, zap it in the microwave for 7–10 seconds, or place in a low oven for a minute. This brings back the gooey marshmallow and re-melts the chocolate for the ultimate s’mores experience every time.

FAQs

Can I make these with crunchy peanut butter?

Absolutely! Crunchy peanut butter will add an extra pop of texture and peanutty flavor to your sandwiches—just keep in mind that the cookies may spread a little less.

What type of chocolate is best for Peanut Butter S’mores Sandwich Cookies?

Any chocolate you love will work—try classic milk for the nostalgic touch, or bittersweet dark for a more grown-up twist. Even a chocolate-hazelnut spread works in a pinch.

Can I use miniature marshmallows?

Yes! Just use enough minis to cover the center of each cookie—about 3 or 4 per sandwich. This ensures you get that gooey core in every bite.

How do I keep the cookies from getting soggy?

Let the cookies cool completely before assembling, and don’t overheat during the marshmallow-melting step. Storing assembled cookies loosely fitted in a container with parchment helps keep them just right.

Is it possible to make these gluten-free?

Absolutely! Swap the all-purpose flour for your favorite 1:1 gluten-free baking blend. The cookies maintain their soft, chewy character, making gluten-free Peanut Butter S’mores Sandwich Cookies a real possibility!

Final Thoughts

There’s true joy in baking and sharing these Peanut Butter S’mores Sandwich Cookies—they’re simple, celebratory, and sure to spark delight in anyone who takes a bite. Gather your ingredients, invite a friend or two, and be ready for the kind of irresistible, sticky-fingered bliss that only the best homemade treats can bring!