Why Peanut Butter S’mores Cookies Are a Must-Try
Picture this: a warm, gooey cookie with the rich taste of peanut butter, chocolate, and marshmallows melting together in perfect harmony. Sounds dreamy, right? That’s exactly what happened when I first made Peanut Butter S’mores Sandwich Cookies. It was a rainy afternoon, and my kids were craving something sweet but exciting. These cookies turned out to be the ultimate treat—crispy on the edges, soft in the middle, and packed with flavors that remind you of cozy campfires. Whether you’re a fan of classic s’mores or just love peanut butter desserts, these cookies are about to become your new favorite.
A Little History Behind the Magic
S’mores have been a summer staple for decades, dating back to the early 1900s when Girl Scouts first published the recipe. But why stop at roasting marshmallows over a fire? The idea of turning s’mores into cookies came from my love for reinventing classics. One day, while staring at a jar of peanut butter, I thought, “What if we add this creamy goodness to s’mores?” And voila! A modern twist on a timeless treat was born. These Peanut Butter S’mores Cookies combine nostalgia with innovation, making them irresistible to both kids and adults alike.
Why You’ll Love This Recipe
This recipe is as simple as it is delicious. With just a few pantry staples, you can whip up a batch in no time. The dough is easy to work with, and the filling is pure magic—smooth chocolate, sticky marshmallows, and a hint of peanut butter come together in every bite. Plus, these cookies are versatile. Serve them at parties, pack them for picnics, or enjoy them straight out of the jar (no judgment here!). Trust me; once you try them, you’ll want to make them again and again.
Perfect Occasions to Make These Cookies
Whether you’re hosting a backyard barbecue, planning a family movie night, or need a show-stopping dessert for potlucks, Peanut Butter S’mores Cookies fit the bill. They’re also great for holidays like Halloween or Christmas when themed treats are all the rage. Honestly, though, you don’t need a special occasion to bake these. Sometimes, the best reason is simply because you feel like indulging in something sweet and satisfying.
Ingredients You’ll Need
Here’s everything you need to create these delightful cookies:
For the Cookies:
- 1 cup unsalted butter, softened
- 1 cup peanut butter
- 1 cup granulated sugar
- 1 cup brown sugar, packed
- 2 large eggs
- 1 tsp vanilla extract
- 1 cup all-purpose flour
- 1 cup graham cracker crumbs
- 1 tsp baking soda
- ½ tsp salt
For the Filling:
- 1 cup mini marshmallows
- ½ cup chocolate chips
- ¼ cup peanut butter
Substitution Options
If you’re missing an ingredient or looking to switch things up, here are some ideas:
- Butter: Use margarine or coconut oil for a dairy-free option.
- Peanut Butter: Swap with almond butter or sunflower seed butter for nut allergies.
- Graham Cracker Crumbs: Crushed digestive biscuits work well too.
- Chocolate Chips: Dark or white chocolate chips can add variety.
Step-by-Step Preparation
Step 1: Preheat and Prep
Start by preheating your oven to 175°C (350°F). Line a baking sheet with parchment paper—it makes cleanup so much easier! While the oven heats up, gather all your ingredients. There’s something soothing about having everything laid out before diving in. Pro tip: Softening the butter ahead of time ensures a smoother dough.
Step 2: Cream the Base
In a large bowl, cream together the softened butter, peanut butter, granulated sugar, and brown sugar until light and fluffy. This step is crucial because it creates air pockets in the dough, giving your cookies that perfect texture. Add the eggs one at a time, followed by the vanilla extract. The aroma of vanilla mixing with peanut butter is heavenly!
Step 3: Mix Dry Ingredients
In another bowl, whisk together the flour, graham cracker crumbs, baking soda, and salt. Gradually add these dry ingredients to the wet mixture, stirring until a soft dough forms. Don’t overmix—just enough to bring it all together. Chef’s tip: Chill the dough for 15 minutes if it feels too sticky. This helps prevent spreading during baking.
Step 4: Shape and Bake
Scoop tablespoon-sized portions of dough and roll them into balls. Place them on the prepared baking sheet, pressing down slightly to flatten. Pop them into the oven for 10–12 minutes or until golden around the edges. Let the cookies cool completely on a wire rack. The anticipation is real, but trust me, they’re worth the wait!
Step 5: Prepare the Filling
Melt the chocolate chips and peanut butter in a microwave-safe bowl, stirring until smooth. Fold in the mini marshmallows and let the mixture cool slightly until it thickens. Spread a spoonful onto the flat side of one cookie, then sandwich it with another. Repeat until all cookies are paired up. Your kitchen will smell amazing, and your taste buds will thank you.
Timing Breakdown
Prep Time: 20 minutes | Baking Time: 12 minutes per batch | Cooling Time: 15 minutes | Total Time: About 1 hour
Chef’s Secret
To elevate your Peanut Butter S’mores Cookies, sprinkle a pinch of sea salt on top of each sandwich before serving. The salty-sweet combo is divine and adds a gourmet touch.
Extra Info
Did you know that National Peanut Butter Day is celebrated on January 24th? Coincidence or fate? Either way, it’s the perfect excuse to bake a batch of these cookies and share them with friends!
Necessary Equipment
You’ll need a few basic tools: a stand mixer or hand mixer, measuring cups and spoons, a baking sheet, parchment paper, and a spatula. Nothing fancy—just good ol’ kitchen essentials.
Storage Tips
Store your cookies in an airtight container at room temperature for up to 3 days. For longer storage, pop them in the fridge for a week or freeze them for up to 3 months. To keep them fresh, place a slice of bread in the container—it absorbs excess moisture and keeps the cookies soft.
If freezing, wrap each cookie individually in plastic wrap before placing them in a freezer-safe bag. When ready to eat, thaw them at room temperature or zap them in the microwave for 10 seconds.
Pro tip: Reheat frozen cookies in the oven at 150°C (300°F) for 5 minutes to restore their gooey goodness.
Tips and Advice
- Use room-temperature eggs for better incorporation into the dough.
- Don’t skip the graham cracker crumbs—they add that signature s’mores flavor.
- Toast the marshmallows lightly under the broiler for an extra smoky taste.
Presentation Ideas
- Dust powdered sugar on top for a snowy effect.
- Drizzle melted chocolate over the finished sandwiches for added flair.
- Serve them on a rustic wooden board for a charming touch.
Healthier Alternatives
Want to lighten up this indulgent treat? Here are six variations:
- Gluten-Free Option: Use gluten-free flour and certified gluten-free graham crackers.
- Low-Sugar Version: Replace granulated sugar with a sugar substitute like stevia.
- Vegan Delight: Substitute eggs with flax eggs and use vegan butter and chocolate.
- Protein-Packed: Add a scoop of protein powder to the dough for an energy boost.
- Whole Grain Goodness: Swap all-purpose flour with whole wheat flour.
- Fruit Twist: Mix dried cranberries into the dough for a fruity kick.
Common Mistakes to Avoid
Mistake 1: Overbaking the Cookies
Overbaking leads to dry, crumbly cookies instead of soft, chewy ones. Keep an eye on them while they bake and remove them when the edges turn golden. Remember, they’ll continue to firm up as they cool.
Mistake 2: Skipping the Chilling Step
If the dough feels too soft, chilling it prevents excessive spreading. Patience pays off here—a quick rest in the fridge makes a world of difference.
Mistake 3: Using Large Marshmallows
Large marshmallows don’t melt evenly in the filling. Stick to mini marshmallows for the best results. Pro tip: Stir them in gently to avoid deflating their fluffiness.
FAQ Section
Can I use crunchy peanut butter?
Absolutely! Crunchy peanut butter adds a delightful texture contrast to the smooth filling. Just ensure it’s well incorporated into the dough.
How do I make graham cracker crumbs?
Simply crush graham crackers in a food processor or place them in a zip-top bag and crush with a rolling pin until fine.
Can I freeze the dough?
Yes! Scoop the dough into balls, freeze them on a tray, then transfer to a freezer bag. Bake directly from frozen, adding 1–2 minutes to the baking time.
What if I don’t have a stand mixer?
No worries! A hand mixer or even a sturdy whisk works fine. Just be prepared for a little arm workout.
This could be due to warm butter or skipping the chilling step. Make sure your butter is softened, not melted, and chill the dough if needed.
Can I double the recipe?
Of course! Doubling the recipe means more cookies to share—or stash away for yourself.
Do I have to use peanut butter?
Not at all. Almond butter or cashew butter works beautifully if you prefer a different nutty flavor.
Flat cookies often result from too much butter or not enough flour. Measure carefully and consider chilling the dough.
Can I use regular marshmallows?
While possible, mini marshmallows distribute more evenly. Cut regular marshmallows into smaller pieces if you must use them.
Stored properly, they stay fresh for up to 3 days at room temperature or a week in the fridge. Freeze for longer storage.
Final Thoughts
Peanut Butter S’mores Sandwich Cookies are more than just a dessert—they’re a celebration of flavors, textures, and memories. Whether you’re baking for loved ones or treating yourself, these cookies promise happiness in every bite. So grab your apron, gather your ingredients, and get ready to create something truly magical. Happy baking!

Equipment
- Stand mixer or hand mixer
- Measuring cups and spoons
- Baking sheet
- Parchment paper
- Spatula
Ingredients
- 1 cup unsalted butter, softened
- 1 cup peanut butter
- 1 cup granulated sugar
- 1 cup brown sugar, packed
- 2 large eggs
- 1 tsp vanilla extract
- 1 cup all-purpose flour
- 1 cup graham cracker crumbs
- 1 tsp baking soda
- ½ tsp salt
- 1 cup mini marshmallows
- ½ cup chocolate chips
- ¼ cup peanut butter (for filling)
Instructions
- Preheat the oven to 175°C (350°F) and line a baking sheet with parchment paper.
- In a large bowl, cream together softened butter, peanut butter, granulated sugar, and brown sugar until light and fluffy.
- Add the eggs one at a time followed by vanilla extract, mixing well.
- In another bowl, whisk together flour, graham cracker crumbs, baking soda, and salt.
- Gradually add dry ingredients to the wet mixture, stirring until a soft dough forms.
- Scoop tablespoon-sized portions of dough, roll into balls, and place on the baking sheet, pressing down slightly.
- Bake for 10–12 minutes or until golden around the edges, then let cool completely on a wire rack.
- Melt chocolate chips and peanut butter in a microwave-safe bowl, stirring until smooth, then fold in mini marshmallows.
- Spread a spoonful of the filling onto the flat side of one cookie and sandwich with another cookie. Repeat until all cookies are paired up.