Peanut Butter S’mores Sandwich Cookies

This S’mores Peanut Butter Chocolate Chip Cookies recipe is sure to curb your sweet tooth any time it strikes! Real marshmallows are sandwiched between two chewy peanut butter and chocolate chip cookies to create this ooey-gooey delicious dessert. And they come together in under 30 minutes; no campfire required!

If you are a s’mores lover like me, you’ll also love these delicious S’mores Bars and my Dark Chocolate S’more Pretzels!

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S’Mores Sandwich Cookies Are the Best Cookies!

Whether it’s freezing cold and snowing or 75 and sunny, all I can think about are ooey, gooey homemade s’mores. I just can’t get enough of ’em! Gooey chocolate and sticky marshmallows are sandwiched between two chewy peanut butter cookies. I mean, does it honestly get any better than that?!

Rather than standard graham crackers, this recipe was built from my favorite Peanut Butter Cookie Recipe. Then, I added a few chocolate chips, sandwiched a melted marshmallow between the cookies, and voila! An indoor s’more was born.

With this easy s’mores cookie recipe, you get all the flavors of real campfire s’mores indoors. They’re ooey-gooey, sticky, a little bit messy, and a seriously delicious sweet treat you can enjoy year-round!

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Key Ingredients

  • Softened Butter: My tip for softening butter fast is to simply heat it for 10 seconds, then flip the stick over and warm for another 4-5 seconds. You’ll have perfectly soft butter.
  • Sugar: Both granulated and brown sugar are necessary for this recipe. Dark brown sugar has a deeper flavor and blends well with the chocolate, but the light brown sugar will work well too if that is what you have.
  • Peanut Butter: Creamy peanut butter is your best option here! Regular, not natural, is also preferred.
  • Egg: The egg yolks add some richness to the cookie as well as help with binding and chewiness!
  • Vanilla: Everything baked tastes better with vanilla!
  • Flour: All you need is regular all-purpose flour. Just make sure to not pack it in the measuring cup, as this will cause the cookies to be dense, chewy, and less flavorful.
  • Salt: Don’t be afraid to add salt when baking! It needs it, especially in something as sweet as these s’mores cookies.
  • Baking Soda: This gives a little rise to the cookie and helps them spread out a bit.
  • Chocolate Chips: Semi-Sweet is my favorite for this recipe, but any kind will do. Chunks also work well!
  • Marshmallows: Go for the large ones you would typically use for a s’more. Minis are too much trouble and way messier!

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How To Make Peanut Butter S’mores Sandwich Cookies

  1. Cream butter and sugar together. This is a standard rule anyone in the kitchen should follow when baking. Simply let the two ingredients beat together for a few minutes until they are light in color.
  2. Add the peanut butter. Mix for a couple of minutes.
  3. Add the egg and vanilla. Mix again until all clumps are gone, scraping down the sides of the bowl so the ingredients are well incorporated.
  4. Add the dry ingredients. Mix on the lowest speed for LESS than a minute. It is very important NOT to overmix on this step. Overmixing will result in a tough cookie.
  5. Add chocolate chips. Fold in the chocolate by hand. No need to use the mixer here.
  6. Get ready to bake! Portion the dough into 16 cookies and place on a lined baking sheet. I like to use my fingers and slightly flatten the dough. This will help the cookies spread.
  7. Bake and Serve: Bake the S’mores Peanut Butter Chocolate Chip Cookies and allow them to cool on the pan for 2 minutes and then on a wire pan for a couple more minutes. Keep the oven on! Flip over half of the cookies (should be about 8) and place 1 whole marshmallow on each cookie. Place in the oven and bake for 1-2 minutes or until marshmallow is soft and gooey. Take out of the oven and press the marshmallow down gently with your fingers. (I do this before placing the cookie on top so it doesn’t crumble). Top with another cookie, serve, and enjoy!

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Variations

  • Add some chocolate ganache to amp up the chocolate flavor! You could dip the s’mores cookie sandwiches in the ganache, drizzle it over them, or smear it between the cookies and the marshmallows before melting them in the oven.
  • Add some peanut butter chips or chopped roasted peanuts for more peanut butter flavor!
  • Serve with hot cocoa for the full campfire effect!
  • Skip the melted marshmallow by using marshmallow spread instead.
  • Add some nutella because why not?!

Storage, Freezing, and Reheating Instructions

  • Store baked and cooled S’mores Peanut Butter Chocolate Chip Cookies in a plastic bag or airtight container at room temperature for up to 5 days.
  • Freeze prepared dough in a freezer-safe container or plastic bag for up to 3 months. You can roll it to it’s ready to slice and bake, or freeze as rolled balls so you can grab one or more whenever the craving strikes. You can also freeze cooled, baked cookies in a freezer-safe plastic bag or container for up to 3 months, as well.
  • No need to reheat the frozen dough before baking! Just place on a prepared baking sheet, pop in the preheated oven, and bake. If you want the marshmallows to be a little melty after being kept at room temperature, place in the microwave for a few seconds until warmed up. Be careful not to burn the marshmallow or the chocolate!

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Frequently Asked Questions

  • Can you reheat these S’mores Peanut Butter Chocolate Chip Cookies? Yes! These cookies are best served warm right out of the oven. But you can always reheat them if you have leftovers. I recommend placing them in the microwave for a couple of seconds.
  • How do I make these s’mores cookies chewy? I slightly under-baked the cookies to get the soft, chewy center. Melt in your mouth on the inside and firm on the edges. Just how I like my cookies. Brown sugar is also used in the cookies to make them extra soft and chewy.
  • How do I get my cookies to spread out? I like to roll the cookie dough into rounded tablespoons and place it on a nonstick baking mat and then flatten them a bit.  It is important to flatten the cookies before placing them in the oven to help them spread. If you do not flatten the cookies you will end up with a very tall and thick cookie.
  • What if I don’t like peanut butter? I love to use my peanut butter chocolate chip cookies because they are my favorite. You can easily substitute with your favorite cookie recipe if peanut butter isn’t your thing.

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S'mores Peanut Butter Chocolate Chip Cookies

5 from 2 votes
Prep Time: 15 minutes
Cook Time: 15 minutes
Total Time: 30 minutes
Servings: 16
30 minute Chewy Peanut Butter S'mores Sandwich Cookies. Real marshmallow sandwiched between two peanut butter and chocolate chip cookies. No campfire needed!

Ingredients

  • ½ cup butter 1 stick, softened
  • ½ cup brown sugar
  • ¼ cup sugar
  • ½ cup creamy peanut butter
  • 1 whole egg
  • ¾ teaspoon vanilla extract
  • 1⅓ cups all purpose flour
  • pinch of salt
  • ¾ teaspoon baking soda
  • 1 cup semi sweet chocolate chips
  • 8 marshmallows left whole

Instructions

  • Preheat oven to 350 degrees.
  • In a stand mixer with the paddle attachment cream butter and both sugars until light and fluffy, about 3 minutes.
  • Add in peanut butter and mix for 1-2 minutes.
  • Add in egg and vanilla. Mix until combined and clump free.
  • Combine flour, salt and baking soda in a small bowl.
  • Add the dry ingredients to the batter in two parts with the stand mixer on the lowest speed. Mix for a little less than a minute. Do not over mix.
  • Fold in chocolate chips by hand.
  • Portion dough into 16 cookies.
  • Place on a baking sheet lined with a baking mat. Using your fingers gently flatten the cookies. This will help the cookies spread as they cook.
  • Bake cookies for 8-10 minutes until lightly golden brown and firm on the edges.
  • Remove from the oven and let set for 2 minutes on the baking sheet. DO NOT TURN OFF OVEN.
  • Transfer to a cooling rack and cool for 2-3 more minutes (until they are cool enough to handle).
  • Flip over half of the cookies (should be about 8) and place 1 whole marshmallow on each cookie. Place in the oven and bake for 1-2 minutes or until the marshmallow is soft and gooey. Take out of the oven and press the marshmallow down gently with your fingers. (I do this before placing the cookie on top so it doesn't crumble).
  • Top with another cookie and serve immediately. Cookies are best served hot. To reheat cookies just place in the microwave for a couple of seconds.
Nutrition Facts
S'mores Peanut Butter Chocolate Chip Cookies
Amount Per Serving
Calories 255 Calories from Fat 126
% Daily Value*
Fat 14g22%
Saturated Fat 7g44%
Cholesterol 26mg9%
Sodium 149mg6%
Potassium 140mg4%
Carbohydrates 28g9%
Fiber 2g8%
Sugar 17g19%
Protein 4g8%
Vitamin A 198IU4%
Calcium 21mg2%
Iron 1mg6%
* Percent Daily Values are based on a 2000 calorie diet.
Course: Dessert
Cuisine: American
Keyword: Baking, Cookies, Marshmallow, Peanut Butter Smores Chocolate Chip Cookies

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