Peanut Butter S’mores Sandwich Cookies are a delightful treat that combines the nostalgic flavors of s’mores with the rich taste of peanut butter. Perfect for any occasion, these sandwich cookies are soft and chewy, filled with gooey vegan marshmallow fluff, warm peanut butter, and melted chocolate. They’re an indulgent dessert that will impress friends and family alike, making them an ideal choice for gatherings or a cozy night in.
Why You’ll Love This Recipe
- Easy to Make: With simple ingredients and straightforward steps, these cookies come together quickly.
- Decadent Flavor: The combination of peanut butter, chocolate, and marshmallows creates an irresistible flavor profile.
- Versatile Treat: These cookies are perfect for parties, picnics, or just a sweet snack at home.
- Gooey Center: The warm filling provides a delightful contrast to the chewy cookie exterior.
- Customizable: Feel free to add your favorite mix-ins like nuts or different types of chocolate.
Tools and Preparation
To prepare these delicious Peanut Butter S’mores Sandwich Cookies, you’ll need some essential tools. Having the right equipment ensures a smooth baking process and perfect results.
Essential Tools and Equipment
- Stand mixer or hand mixer
- Mixing bowls
- Measuring cups and spoons
- Baking sheet
- Parchment paper
- Cooling rack
Importance of Each Tool
- Stand mixer or hand mixer: Makes creaming ingredients together easy and ensures a fluffy texture for the cookies.
- Baking sheet: Provides an even surface for baking multiple cookies at once.
- Parchment paper: Prevents sticking and makes cleanup a breeze.

Ingredients
Soft, chewy peanut butter cookies sandwiching gooey vegan marshmallows fluff, warm peanut butter, and rich melted chocolate. A nostalgic, indulgent treat!
For the Cookies
- 1 1/2 cups (250 g) creamy peanut butter
- 1/2 cup (113 g) unsalted butter, softened
- 1/2 cup (100 g) granulated sugar
- 1/2 cup (100 g) light brown sugar, packed
- 1 large egg (room temperature)
- 1 tsp vanilla extract
- 1 1/4 cups (160 g) all-purpose flour
- 3/4 tsp baking powder
- 1/4 tsp kosher salt
For the Filling
- 1 cup (96 g) vegan marshmallows fluff
- 1/4 cup (64.5 g) creamy peanut butter, warmed
- 1/2 cup (84 g) milk chocolate chips
How to Make Peanut Butter S’mores Sandwich Cookies
Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper to prevent sticking.
Step 2: Cream the Ingredients
In a large mixing bowl, cream together:
* 1 1/2 cups creamy peanut butter,
* 1/2 cup softened unsalted butter,
* 1/2 cup granulated sugar,
* 1/2 cup light brown sugar
Mix until fluffy (about 2–3 minutes). Add in:
* 1 large egg,
* 1 tsp vanilla extract
Continue mixing until well combined.
Step 3: Combine Dry Ingredients
In another bowl, whisk together:
* 1 1/4 cups all-purpose flour,
* 3/4 tsp baking powder,
* 1/4 tsp kosher salt
Gradually mix these dry ingredients into the wet mixture until a soft dough forms.
Step 4: Shape the Cookies
Scoop out tablespoon-sized portions of dough and place them on the prepared baking sheet about 2 inches apart. Use a fork to flatten each portion with a crisscross pattern.
Step 5: Bake the Cookies
Bake in the preheated oven for about 10–12 minutes or until the edges are golden. Allow them to cool on the baking sheet for about 5 minutes before transferring them to a cooling rack.
Step 6: Melt Chocolate
In a microwave-safe bowl, melt your milk chocolate chips in intervals of 20 seconds until smooth. Stir between intervals to avoid burning.
Step 7: Assemble the Sandwich Cookies
On one cookie base, spread:
* 1 tbsp vegan marshmallows fluff,
* 1 tsp warmed creamy peanut butter,
Drizzle with melted chocolate before topping it with another cookie. Gently press down to create a sandwich.
Step 8: Let Set
Allow your assembled sandwich cookies to set for about 10–15 minutes at room temperature or chill them in the fridge for about 10 minutes for best results.
Step 9: Serve and Enjoy!
Once set, serve these delightful Peanut Butter S’mores Sandwich Cookies fresh or store them in an airtight container. Enjoy!
How to Serve Peanut Butter S’mores Sandwich Cookies
These Peanut Butter S’mores Sandwich Cookies are a delightful treat that can be enjoyed in various ways. Whether for a cozy gathering or a simple dessert at home, here are some serving suggestions to elevate your cookie experience.
Classic Enjoyment
- Serve with a glass of cold almond milk for a nostalgic pairing.
- Enjoy them warm right out of the oven for that gooey texture.
S’mores Platter
- Create a s’mores-themed dessert platter with graham crackers and extra vegan marshmallows fluff.
- Add fresh fruit like strawberries and bananas for a refreshing contrast.
Ice Cream Sandwiches
- Use two cookies to make an ice cream sandwich with your favorite non-dairy ice cream.
- Drizzle with chocolate sauce for an extra indulgent treat.
Party Favors
- Package cookies in decorative bags as party favors for guests to take home.
- Include a small note with serving suggestions to inspire enjoyment later.
Coffee Pairing
- Pair with a cup of brewed coffee or tea to balance the sweetness.
- Try flavored coffees like hazelnut or vanilla for added richness.
How to Perfect Peanut Butter S’mores Sandwich Cookies
To make your Peanut Butter S’mores Sandwich Cookies truly unforgettable, follow these helpful tips. These will ensure each batch turns out perfectly chewy and delicious.
- Use Room Temperature Ingredients: Bring eggs and butter to room temperature before mixing. This helps in creating a smooth batter.
- Don’t Overmix: Mix ingredients until just combined to keep the cookies soft and chewy.
- Chill the Dough: For thicker cookies, chill the dough for 30 minutes before baking. This prevents spreading during baking.
- Watch the Baking Time: Bake until edges are golden but centers look slightly underbaked for that perfect chewy texture.
- Experiment with Add-ins: Feel free to add nuts or swap chocolate chips for other flavors like dark chocolate or butterscotch.
Best Side Dishes for Peanut Butter S’mores Sandwich Cookies
If you’re looking for the perfect side dishes to complement your Peanut Butter S’mores Sandwich Cookies, consider these options. They enhance the flavors and provide complementary textures.
- Fresh Fruit Salad: A mix of seasonal fruits adds brightness and balances sweetness.
- Vegan Whipped Cream: Light and airy, it pairs beautifully when served alongside or on top of cookies.
- Chocolate-Dipped Strawberries: Decadent yet refreshing, these are great for dipping.
- Nutty Granola: Serve a small bowl of nutty granola on the side for added crunch and flavor contrast.
- Herbal Tea: A soothing herbal tea can cleanse the palate between bites of rich cookies.
- Frozen Yogurt: A scoop of non-dairy frozen yogurt adds creaminess that complements the cookie’s texture.
Common Mistakes to Avoid
Making Peanut Butter S’mores Sandwich Cookies can be simple, but a few common mistakes might lead to less-than-perfect results. Here are some pitfalls to avoid:
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Using cold ingredients: Cold butter or eggs can lead to a dense cookie. Make sure your butter is softened and your egg is at room temperature for a fluffy texture.
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Not measuring flour correctly: Too much flour can dry out your cookies. Use the spoon-and-level method to measure flour accurately for the best results.
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Overbaking the cookies: Baking too long can result in hard cookies. Keep an eye on them and remove them from the oven as soon as the edges turn golden.
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Skipping the cooling step: Allowing cookies to cool before assembling helps maintain their structure. Don’t rush this step; it ensures gooey marshmallows don’t melt everywhere.
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Forgetting to warm peanut butter: Using cold peanut butter makes it difficult to spread. Warm it slightly for a smooth, easy application on your sandwich cookies.

Storage & Reheating Instructions
Refrigerator Storage
- Store in an airtight container for up to 5 days.
- Place parchment paper between layers of cookies to prevent sticking.
Freezing Peanut Butter S’mores Sandwich Cookies
- Freeze for up to 3 months in an airtight container.
- Separate layers with parchment paper for easy removal.
Reheating Peanut Butter S’mores Sandwich Cookies
- Oven: Preheat to 350°F (175°C) and heat for about 5 minutes until warm.
- Microwave: Heat one cookie at a time for about 10-15 seconds to soften.
- Stovetop: Use a skillet on low heat for about 1-2 minutes, flipping halfway through.
Frequently Asked Questions
Here are some common questions about Peanut Butter S’mores Sandwich Cookies that might help you while making this treat!
Can I use crunchy peanut butter instead of creamy?
You can substitute crunchy peanut butter if you prefer added texture. It will still yield delicious results!
How do I ensure my marshmallow fluff stays gooey?
By assembling your sandwich cookies shortly after baking, the warmth helps keep the marshmallow fluff soft and gooey.
Can I customize the chocolate used in this recipe?
Absolutely! You can use dark chocolate or even white chocolate chips based on your preference, adding variety to your treat.
How do I make these cookies gluten-free?
You can replace all-purpose flour with a gluten-free blend that measures cup-for-cup, ensuring everyone can enjoy these tasty cookies!
What if I don’t have vegan marshmallow fluff?
You can make your own using aquafaba and powdered sugar or purchase a vegan alternative from stores.
Final Thoughts
Peanut Butter S’mores Sandwich Cookies are not only delicious but also versatile! They offer a perfect balance of flavors with endless customization options. Try different chocolates or add-ins like nuts or dried fruits for unique variations. Enjoy making these delightful treats and share them with friends and family!
Peanut Butter S’mores Sandwich Cookies
Peanut Butter S’mores Sandwich Cookies are a delightful fusion of nostalgia and indulgence, perfect for any occasion. These soft, chewy cookies feature a luscious filling of gooey vegan marshmallow fluff, warm peanut butter, and rich melted chocolate, making them an irresistible treat for family gatherings or cozy nights in. With easy-to-follow steps and simple ingredients, these cookie sandwiches are sure to impress and satisfy your sweet cravings.
- Prep Time: 15 minutes
- Cook Time: 12 minutes
- Total Time: 27 minutes
- Yield: Approximately 12 sandwich cookies 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Ingredients
- 1 1/2 cups creamy peanut butter
- 1/2 cup unsalted butter
- 1/2 cup granulated sugar
- 1/2 cup light brown sugar
- 1 large egg
- 1 tsp vanilla extract
- 1 1/4 cups all-purpose flour
- 3/4 tsp baking powder
- 1/4 tsp kosher salt
- 1 cup vegan marshmallow fluff
- 1/4 cup creamy peanut butter, warmed
- 1/2 cup milk chocolate chips
Instructions
- Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
- In a mixing bowl, cream together peanut butter, softened unsalted butter, granulated sugar, and brown sugar until fluffy. Add the egg and vanilla extract; mix well.
- In another bowl, whisk together flour, baking powder, and salt. Gradually add the dry mixture to the wet ingredients until combined.
- Scoop tablespoon-sized portions onto the prepared baking sheet, spacing them apart. Flatten each with a fork in a crisscross pattern.
- Bake for 10–12 minutes until edges are golden. Cool on the baking sheet for about 5 minutes before transferring to a cooling rack.
- Melt chocolate chips in intervals until smooth. Assemble cookies by spreading marshmallow fluff and warmed peanut butter on one cookie base, drizzling with melted chocolate before topping with another cookie.
Nutrition
- Serving Size: 1 sandwich cookie (50g)
- Calories: 210
- Sugar: 12g
- Sodium: 150mg
- Fat: 12g
- Saturated Fat: 5g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 22g
- Fiber: 2g
- Protein: 5g
- Cholesterol: 20mg




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