Why You’ll Love This Recipe

Peanut Butter S’mores Sandwich Cookies are a decadent twist on the classic campfire treat. Featuring rich peanut butter cookies sandwiched with gooey marshmallow fluff and melty chocolate, these indulgent bites deliver all the nostalgic flavors of s’mores in a soft, chewy cookie form. Perfect for parties, bake sales, or anytime you want a little something extra.

ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

creamy peanut butterunsalted buttergranulated sugarsbrown sugareggsvanilla extractall-purpose flourbaking soda saltmini marshmallows or marshmallow fluffsquares of milk or dark chocolategraham cracker crumbs (optional for garnish)

directions

Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.

In a large mixing bowl, cream together the peanut butter, butter, granulated sugar, and brown sugar until light and fluffy.

Add eggs and vanilla extract, and beat until well combined.

In a separate bowl, whisk together the flour, baking soda, and salt.

Gradually mix the dry ingredients into the wet ingredients until a soft dough forms.

Scoop out equal portions of dough and roll into balls. Place them on the prepared baking sheet and lightly flatten with a fork.

Bake for 8-10 minutes, until the edges are lightly golden but the centers remain soft.

Let the cookies cool completely on a wire rack.

Spread marshmallow fluff on the flat side of half the cookies.

Top with a square of chocolate and sandwich with another cookie.

Optional: Roll the edges of the sandwich in crushed graham cracker crumbs for a true s’mores vibe.

Servings and timing

This recipe yields approximately 18 sandwich cookies.
Preparation time: 20 minutes
Baking time: 10 minutes
Cooling and assembling time: 20 minutes
Total time: 50 minutes

Variations

Swap peanut butter for almond or cashew butter for a different nutty flavor.

Use flavored marshmallows (like toasted coconut) for added texture and taste.

Add mini chocolate chips to the dough for extra chocolatey bites.

Dip the finished sandwiches halfway in melted chocolate for a fancier finish.

Use a brûlée torch to lightly toast the marshmallow filling.

storage/reheating

Store in an airtight container at room temperature for up to 3 days.
Refrigerate for up to 7 days if needed.
For a warm, melty texture, microwave the sandwich cookie for about 8-10 seconds.

FAQs

Can I use crunchy peanut butter?

Yes, but it will give the cookies a chunkier texture.

Do I need to chill the dough?

It’s not required, but chilling for 15-30 minutes can help reduce spreading.

Can I use store-bought marshmallow creme?

Absolutely! Marshmallow fluff or creme works perfectly.

What chocolate works best?

Milk or dark chocolate squares both work well—choose your favorite!

Can I freeze these cookies?

Yes, freeze the unassembled cookies, then thaw and assemble when ready to serve.

Are these cookies messy?

They can be a little gooey—just like real s’mores—but that’s part of the fun!

Can I make them smaller?

Yes, use a smaller scoop and reduce the baking time by a minute or two.

How do I make them more graham cracker-y?

Add crushed graham crackers to the dough or roll the sides in crumbs after assembling.

Can I make them gluten-free?

Use a 1:1 gluten-free flour blend and check labels on other ingredients.

Are they kid-friendly?

Definitely! Kids will love the gooey center and sweet flavors.

Conclusion

Peanut Butter S’mores Sandwich Cookies bring together everything you love about s’mores with the irresistible richness of peanut butter cookies. With melty chocolate, marshmallow fluff, and soft cookies in every bite, these treats are perfect for any occasion—or just because. Once you try them, you’ll be hooked on this sweet sandwich creation.