Name: Peanut Butter S’mores Sandwich Cookies: Your Nostalgic Treat
Prep time: 15 min
Cook time: 12 min
Total time: 42 min
Ingredients: 1/2 cup creamy peanut butter; 1/2 cup unsalted butter (softened); 1/2 cup granulated sugar; 1/2 cup light brown sugar; 1 large egg (or flax egg for vegan option); 1 teaspoon vanilla extract; 1 1/2 cups all-purpose flour (or gluten-free blend); 1 teaspoon baking powder; 1/2 teaspoon kosher salt; 1 cup marshmallow fluff; 1/2 cup creamy peanut butter (for filling); 1 cup milk chocolate chips (or dark chocolate)

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As I rummaged through my pantry, a forgotten jar of creamy peanut butter caught my eye, sparking a wave of nostalgia. Instantly, I imagined biting into warm, gooey Peanut Butter S’mores Sandwich Cookies, a delightful blend of rich peanut butter, soft marshmallow fluff, and luscious chocolate. This recipe isn’t just a testament to childhood camping trips around the fire; it’s a quick and customizable treat that both kids and adults will adore. Perfect for weekend baking sessions, school lunches, or festive gatherings, these cookies sprinkle joy into any occasion. If you’re ready to whip up a batch of these delectable delights, keep reading—your taste buds are in for a delightful surprise!

Why Are These Cookies So Irresistible?

Nostalgic Comfort: These Peanut Butter S’mores Sandwich Cookies transport you back to carefree childhood days filled with campfire treats and laughter.

Indulgent Layers: With chewy peanut butter cookies hugging gooey marshmallow fluff and rich chocolate, every bite is pure bliss.

Customizable Delight: Feel free to swap in crunchy peanut butter or dark chocolate—make it your own!

Quick & Easy: Ready in just under an hour, these cookies can be whipped up for a last-minute gathering or lunchbox surprise.

Crowd-Pleasing Appeal: Perfect for sharing at parties or enjoying with family, they guarantee smiles and satisfied cravings.

To elevate these treats, serve them alongside a warm glass of milk or check out my scrumptious Peanut Butter Cookies for an extra peanut butter fix!

Peanut Butter S’mores Sandwich Cookies Ingredients

For the Cookie Dough
• Creamy Peanut Butter – The primary flavor and fat source; almond or cashew butter can be swapped for nut allergies.
• Unsalted Butter – Adds richness and crucial structure; make sure it’s softened for ideal creaming.
• Granulated Sugar – Sweetens and contributes to the cookie’s crispiness.
• Light Brown Sugar – Moisture-rich with a deep caramel flavor that balances sweetness.
• Large Egg – Binds everything together, adding moisture; substitute with a flax egg for a vegan option.
• Vanilla Extract – Enhances the overall depth of flavor.
• All-Purpose Flour – Provides essential structure; use a gluten-free blend for dietary restrictions.
• Baking Powder – This leavening agent helps the cookies lift perfectly.
• Kosher Salt – Balances sweetness and enhances flavors.

For the Gooey Filling
• Marshmallow Fluff – The star of the filling, delivering delightful gooeyness.
• Creamy Peanut Butter (for filling) – Adds richness to the marshmallow fluff filling.
• Milk Chocolate Chips – Offers a rich chocolate flavor; swap for dark chocolate for a more intense taste.

The delightful combination of flavors in these Peanut Butter S’mores Sandwich Cookies is sure to satisfy any sweet tooth!

Step‑by‑Step Instructions for Peanut Butter S’mores Sandwich Cookies

Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C). While it warms up, line a baking sheet with parchment paper to prevent the cookies from sticking. This will ensure that your Peanut Butter S’mores Sandwich Cookies bake evenly and achieve that delightful golden edge everyone loves.

Step 2: Cream the Butters and Sugars
In a large mixing bowl, use an electric mixer to beat together ½ cup of creamy peanut butter, ½ cup of softened unsalted butter, ½ cup of granulated sugar, and ½ cup of light brown sugar. Mix on medium speed for about 2-3 minutes until the mixture is light and fluffy. This step is crucial for incorporating air, which makes your cookies tender and airy.

Step 3: Add Egg and Vanilla
Once the mixture is creamy, add 1 large egg and 1 teaspoon of vanilla extract. Continue to mix on medium speed until everything is well combined, about 1-2 minutes. The egg helps bind the ingredients together, making your Peanut Butter S’mores Sandwich Cookies perfectly soft and chewy.

Step 4: Combine Dry Ingredients
In a separate bowl, whisk together 1 ½ cups of all-purpose flour, 1 teaspoon of baking powder, and ½ teaspoon of kosher salt. Gradually add this dry mixture to the wet ingredients, stirring with a rubber spatula until a soft dough forms. Take care not to overmix; you want a tender cookie dough for the best texture.

Step 5: Shape the Cookies
Use a tablespoon to scoop out the dough and roll it into balls. Place the balls on the prepared baking sheet, spacing them about 2 inches apart. Flatten each ball gently with a fork to create a distinctive crisscross pattern. This not only looks pretty but also helps the cookies bake evenly.

Step 6: Bake and Cool
Bake the cookies in the preheated oven for 10-12 minutes, or until the edges are golden brown while the centers appear slightly soft. Once baked, allow them to cool on the baking sheet for about 5 minutes before transferring to a wire rack. This resting time helps them set up perfectly.

Step 7: Prepare the Gooey Filling
While the cookies are cooling, melt 1 cup of milk chocolate chips in a microwave-safe bowl. Heat them in 20-second intervals, stirring after each, until the chocolate is completely smooth and pourable. This melted chocolate will be drizzled as part of your filling, bringing that rich flavor to the Peanut Butter S’mores Sandwich Cookies.

Step 8: Assemble the Cookies
On the bottom of one cooled cookie, spread a layer of marshmallow fluff followed by a layer of creamy peanut butter. Drizzle some of the melted chocolate on top, allowing it to cascade down, adding a deliciously rich layer to the filling. Top with another cookie, gently pressing down to create a sandwich.

Step 9: Let Them Set
To finish your Peanut Butter S’mores Sandwich Cookies, let them set at room temperature for 10-15 minutes. Alternatively, you can chill them in the refrigerator for about 10 minutes to firm up the filling before serving. This will enhance the gooey texture and flavor of these delightful treats.

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Expert Tips for Peanut Butter S’mores Sandwich Cookies

Don’t Overbake: Keep an eye on the cookies as they bake; they should be slightly soft in the center for the best chewy texture.
Chill the Filling: For a firmer filling, chill the assembled cookies in the fridge for about 10 minutes before serving.
Mix It Up: Experiment by adding crushed graham crackers into the cookie dough for that extra s’mores flair; it truly enhances the flavor!
Chocolate Choices: Feel free to substitute with dark or semi-sweet chocolate for a deeper, richer taste that complements the peanut butter beautifully.
Storage Secrets: Keep your Peanut Butter S’mores Sandwich Cookies in an airtight container to enjoy their gooeyness for up to 2 days at room temperature, or up to 5 days in the fridge.

Make Ahead Options

These Peanut Butter S’mores Sandwich Cookies are perfect for busy home cooks looking to save time! You can prepare the cookie dough up to 24 hours in advance by wrapping it tightly in plastic wrap and refrigerating it. Additionally, you can bake the cookies and store them in an airtight container for up to 3 days at room temperature. For the filling, simply prepare the marshmallow fluff and melted chocolate mixture ahead of time, storing it in the fridge for a quick assembly later. When you’re ready to serve, just spread the filling between the cooled cookies and let them set for about 10-15 minutes. Enjoy delicious, nostalgic treats without the last-minute rush!

What to Serve with Peanut Butter S’mores Sandwich Cookies?

Indulging in Peanut Butter S’mores Sandwich Cookies is an experience that invites you to create the perfect meal atmosphere, filled with love and warmth.

Cold Milk: A classic pairing that balances the richness of the cookies and offers a refreshing contrast to the gooey layers.
Hot Cocoa: Cozy and comforting, this rich beverage pairs delightfully with the cookies, enhancing the nostalgic s’mores theme.
Vanilla Ice Cream: Serve the cookies as an ice cream sandwich for an extraordinary dessert, where creamy and crunchy textures collide.
Fresh Berries: The tartness of strawberries or raspberries cuts through the sweetness, adding a vibrant freshness to your dessert spread.
Caramel Sauce: Drizzle on top for an added layer of indulgence, creating a luscious sweetness that beautifully complements the peanut butter flavor.
Coffee: A warm cup of coffee enhances the cookie experience, providing depth with its rich flavor and aromatic qualities.

Enjoy these delightful pairings that perfectly showcase your Peanut Butter S’mores Sandwich Cookies!

How to Store and Freeze Peanut Butter S’mores Sandwich Cookies

Room Temperature: Keep cookies in an airtight container for up to 2 days. This will maintain their soft, chewy texture, ensuring each bite is as delightful as the first.
Fridge: If you prefer a firmer texture, store cookies in the fridge for up to 5 days. Just remember to bring them to room temperature for the best flavor experience.
Freezer: These Peanut Butter S’mores Sandwich Cookies freeze beautifully! Place them in a freezer-safe container or bag, separated by parchment paper, for up to 1 month. Thaw at room temperature before enjoying.
Reheating: To restore that freshly baked warmth, pop a cookie in the microwave for about 10 seconds. This will make the marshmallow fluff gooey again and enhance that indulgent experience!

Peanut Butter S’mores Sandwich Cookies Variations

Feel free to put your own twist on these irresistible cookies and make them uniquely yours!

Crunchy Peanut Butter: Swap creamy peanut butter for crunchy for a delightful texture contrast in every bite. The added crunch enhances the overall cookie experience.
Chocolate Variety: Experiment with dark chocolate or even white chocolate chips for the filling to suit your taste preferences. Each variation brings a different flavor profile, keeping things exciting!
Graham Cracker Crust: Mix crushed graham crackers into the cookie dough for an extra s’mores flair. This adds a delightful crumbly texture that beautifully complements the chewy cookie.
Mini Marshmallow Twist: Fold mini marshmallows directly into the cookie dough for unexpected gooey pockets. Just imagine the surprise in your mouth with each bite!
Spicy Kick: For an adventurous twist, add a pinch of cayenne pepper or cinnamon to the cookie dough. This subtle heat elevates the flavors, inviting curiosity from your taste buds.
Nut Free: Substitute the peanut butter with sunflower seed butter for a nut-free version. It’s just as delicious and perfect for schools or gatherings!
Vegan Option: Use a flax egg and plant-based butter for a vegan-friendly treat. You can still achieve that gooey and indulgent experience everyone loves!
Lighter Version: For a lighter treat, swap sugar for coconut sugar and use whole wheat flour to keep those nostalgic flavors intact with a healthier twist.

These variations are perfect for any occasion, from relaxed weekends to festive celebrations! If you’re a peanut butter lover, you might also want to check out my Peanut Butter Reeses for another scrumptious treat!

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Peanut Butter S’mores Sandwich Cookies Recipe FAQs

What type of peanut butter should I use?
You should use creamy peanut butter for the best texture and flavor. However, if you have nut allergies, almond or cashew butter can be great substitutes. Just ensure they are smooth to maintain the cookie dough’s consistency.

How do I store the Peanut Butter S’mores Sandwich Cookies?
Store your cookies in an airtight container at room temperature for up to 2 days. If you prefer, you can refrigerate them for up to 5 days. Just remember to let them come to room temperature before enjoying for the best flavor.

Can I freeze these cookies?
Absolutely! To freeze your Peanut Butter S’mores Sandwich Cookies, place them in a freezer-safe container or bag, ensuring they are separated by parchment paper. They’ll stay fresh for up to 1 month. When you’re ready to devour them, simply thaw at room temperature for the best results.

What should I do if my cookie dough is too crumbly?
If you find that your dough is too crumbly, it might be due to too much flour or insufficient wet ingredients. I recommend adding a teaspoon of milk or water to the dough and mixing it gently until it comes together. Just be careful not to overmix, as you still want that tender texture!

Are these cookies suitable for vegans?
You can make a vegan version of these cookies by substituting the large egg with a flax egg (1 tablespoon of ground flaxseed mixed with 2.5 tablespoons of water, let sit for 5 minutes until it thickens). Additionally, ensure your chocolate chips are dairy-free, and you’re good to go!

How long should I let the filling set before serving?
After assembling your Peanut Butter S’mores Sandwich Cookies, let them set at room temperature for about 10-15 minutes. If you want to speed up the process, you can chill them in the fridge for 10 minutes to firm up the filling before serving. This enhances the gooey texture that makes them so delightful!