Peanut Butter S’mores Sandwich Cookies: The Ultimate Gooey Dessert
If you love peanut butter cookies, s’mores, and chocolatey indulgence, this recipe combines them all into one decadent treat. Peanut Butter S’mores Sandwich Cookies feature chewy peanut butter cookies filled with melted chocolate and marshmallow fluff, creating a handheld dessert that’s part cookie, part campfire s’more, and entirely irresistible. These cookies are perfect for bake sales, holiday trays, or simply treating yourself after a long day. With simple ingredients and an easy assembly, you’ll have a dessert that both kids and adults will rave about.
Why You’ll Love These Cookies
🍪 Triple Flavor Combo
You get the nutty richness of peanut butter, the gooey sweetness of marshmallow, and the smooth decadence of melted chocolate in every bite.
🔥 A Campfire Classic Reimagined
S’mores aren’t just for camping anymore—this recipe turns them into cookies you can enjoy year-round.
🌟 Easy to Make
The cookies bake in under 10 minutes, and the filling comes together in minutes for a quick but impressive dessert.
🎉 Perfect for Sharing
These sandwich cookies are sturdy enough to pack up for parties, picnics, or lunchbox treats.
Ingredients You’ll Need
- 1 cup creamy peanut butter
- ½ cup granulated sugar
- ½ cup brown sugar
- 1 egg
- 1 teaspoon vanilla extract
- ½ teaspoon baking soda
- ¼ teaspoon salt
- 1 cup chocolate chips, melted
- 1 cup marshmallow fluff
Step-by-Step Instructions
1. Preheat the Oven
Preheat oven to 350°F (175°C). Line a baking sheet with parchment paper.
2. Make the Cookie Dough
In a bowl, mix together peanut butter, granulated sugar, brown sugar, egg, vanilla extract, baking soda, and salt until smooth and combined.
3. Shape the Cookies
Roll the dough into small balls and place them on the prepared baking sheet. Flatten each ball gently with a fork to create a crisscross pattern.
4. Bake the Cookies
Bake for 8–10 minutes until golden brown around the edges. Remove from the oven and let the cookies cool completely before assembling.
5. Assemble the Sandwiches
Spread melted chocolate on the bottom of one cookie. Add a layer of marshmallow fluff, then sandwich with another cookie. Press gently to secure.
6. Let Set and Serve
Allow the cookies to set for about 10 minutes before serving. For an authentic campfire vibe, torch or broil the marshmallow fluff lightly before assembling.
Quick Recipe Facts
- Prep Time: 15 minutes
- Cook Time: 10 minutes
- Assembly: 10 minutes
- Total Time: ~35 minutes
- Servings: ~12 sandwich cookies
Pro Tips for Perfect S’mores Cookies
- Cool cookies fully: Warm cookies will melt the chocolate and marshmallow, creating a mess.
- Use quality chocolate: Dark or semi-sweet chocolate balances the sweetness of the fluff and peanut butter.
- Torch the fluff: A kitchen torch or a quick broil adds a toasted marshmallow flavor that makes these cookies taste like campfire s’mores.
- Uniform size: Use a cookie scoop so the cookies match up evenly when sandwiched.
- Storage: Keep in an airtight container at room temperature for up to 3 days.
Variations to Try
🍫 Double Chocolate S’mores
Add 2 tablespoons cocoa powder to the peanut butter dough for a chocolate cookie base.
🥜 Crunchy Peanut Butter Version
Use crunchy peanut butter for added texture and nutty crunch.
🍯 Salted Caramel Twist
Drizzle salted caramel over the marshmallow fluff before sandwiching.
🍪 Graham Cracker Crumble
Roll cookie dough balls in crushed graham crackers before baking for an extra s’mores vibe.
🌰 Nutty Upgrade
Add chopped pecans or walnuts into the cookie dough for more texture.
Storage and Make-Ahead Tips
- Fridge: Store in an airtight container for up to 1 week.
- Freezer: Freeze assembled cookies for up to 2 months. Thaw at room temperature before serving.
- Make Ahead: Bake cookies ahead of time and store them plain; assemble with chocolate and marshmallow just before serving.
Frequently Asked Questions (FAQs)
❓ Can I use homemade marshmallow instead of fluff?
Yes! Homemade marshmallow or melted mini marshmallows will work, though they set more quickly than fluff.
❓ Can I make these gluten-free?
Absolutely—this peanut butter cookie base has no flour, making it naturally gluten-free. Just confirm your chocolate chips are GF.
❓ Can I use white chocolate instead of dark?
Yes, white or milk chocolate works, but it will make the cookies sweeter.
❓ Do these need to be refrigerated?
No, but if your kitchen is warm, refrigerating will help the chocolate set.
Nutrition (Per Cookie Sandwich – approx. 12 servings)
- Calories: ~290
- Carbs: ~30g
- Protein: ~6g
- Fat: ~16g
- Fiber: ~2g
Conclusion
These Peanut Butter S’mores Sandwich Cookies are a playful twist on two beloved desserts—classic peanut butter cookies and gooey campfire s’mores. With chewy cookies, melty chocolate, and creamy marshmallow fluff, each bite is rich, indulgent, and guaranteed to bring a smile. Perfect for parties, holidays, or cozy nights at home, this recipe is simple to make yet unforgettable to eat. Try them once, and they’ll become a staple in your dessert rotation.