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    Home » Recipes » S’mores Marshmallow Stuffed Cookies

    S’mores Marshmallow Stuffed Cookies

    January 7, 2023 by Melinda

    Jump to Recipe Print Recipe

    This marshmallow cookie combines a s’mores and a chocolate chip cookie to create perfectly gooey s’mores cookies with marshmallow lava inside.

    They are the ultimate crowd pleaser and I loved them so much that I had to make these Marshmallow Stuffed Hot Chocolate Cookies so I could enjoy more marshmallow lava yumminess.

     
    Missouri Girl Marshmallow Lava S’mores Cookies. A graham cracker chocolate chip cookie with an ooey, gooey, lava center of melty mashmallow. Missouri Girl. Missouri Girl Blog.
     
     
     

    What are S’mores Cookies?

    What exactly are s’mores cookies?  To understand you must first know what a s’more is.  A s’more is a classic American sweet treat with 3 simple ingredients: graham crackers, chocolate, and toasted marshmallows.  It has began a campfire favorite over the years.  A s’mores cookie combines a classic s’mores and a Missouri Girl chocolate chip cookie to create the perfect gooey cookie that is as delicious as it is fun. This is the ultimate crowd pleaser.

    Imagine this:

    A delicious graham cracker chocolate chip cookie with a lava center of melty marshmallow that oozes out of the little crevices.

    It reminded me so much of a lava cake that I knew it had to have “lava” in the name. The cookies even look like little volcanoes when they come out of the oven!

    The Story Behind These S’mores Cookies

    These cookies were born out of necessity.

    What’s a mom to do when she promises her kids a bonfire with s’mores and it winds up raining and 30-some degrees outside?

    Well, this mom is not sitting outside in those conditions, so…

    We make s’mores inside. Or take the s’mores and turn them into…

    Marshmallow Lava S’mores Cookies

    For those of you that have seen my Missouri Girl Chocolate Chip Cookie post, this may seem a bit familiar as this recipe was adapted from that original recipe. That recipe was 10 years in the making and there are so many tips for making the perfect chocolate chip cookie.

    The Steps to Make Perfectly Gooey S’mores Cookies

    1. Use Perfectly Softened Quality Butter for Fluffy S’mores Cookies

    First, start with the quality butter at the right temperature. See the perfect finger indention? Barely softened butter is key. Too soft and your cookies go flat, too hard and it never incorporates fully into the dough.

    Tip: Did you forget to set out your butter to warm to room temperature?  Defrost in your microwave for about 1 minute (time will vary by microwave).  Perfectly softened butter every time. 

    Good quality butter is also key. Here in Missouri, I use Hiland Butter. It’s my fave!

     
    An example of perfectly softened butter that shows the indention of a finger without any melting butter droplets

    2. Use Light Brown Sugar

    Then add the brown sugar and granulated sugar. Make sure the brown sugar is light, not dark and that it is packed well into your measuring cup or the results will be off. I like to use two parts light brown sugar to one part granulated sugar.

    Beat well with a hand held mixer.

     
    Steps to making the cookies, combining the softened butter and the sugars.

    3. Use Fresh Eggs and Quality Vanilla Extract For the Best S’mores Cookies

    There is a lot of discussion out there over the temperature of the egg. Most people will recommend using room temperature eggs but I’ve always bent the rules on this one. You really are supposed to crack the eggs into a separate bowl in case you get a bad egg. However, as I have only encountered a few bad eggs in my life I have gotten lax in this area.

    So what does a bad egg look like?  Well, NOT normal.  Look for discolorations, uneven coloring that are pink, black, blueish, or green.  It may seem runny or watery or even have a bad smell to it.  

    Always use good, high quality, pure vanilla extract.  If you want the absolute BEST vanilla extract, then make it yourself.  My Homemade Vanilla Extract is easy, budget friendly, and will result in superior quality vanilla extract.  

    Add your egg and vanilla.

    Beat again until all the ingredients are well incorporated and fluffy.

     
    Making the cookie dough by adding eggs and vanilla to the sugars and butter and beating well until fluffy

    4. Use Fresh Baking Soda For tall S’mores Cookies

    Now add your flour, baking soda, and salt. Remember when making these cookies, Missouri Girl style, that it’s all about “heaping” the baking soda. Make sure the baking soda you are using is fresh. Baking soda does loose some of its potency over time. Most recipes call for sifting these ingredients together but I must admit I rarely do!

     
    An example of a heaping ½ teaspoon of baking soda
     

    5. Don’t Over Mix

    With the blender on low speed, mix until just combined. I don’t recommend mixing the dough too well in this particular recipe. I like to mix until the ingredients are just incorporated. You will get a little additional mixing in the next step.

     
    shows the finished cookie dough after adding the flour, baking soda, and salt.
     

    6. Using the right chocolate

    Now stir in your chocolate chips and graham cracker crumbs. For the chocolate chips I am TEAM semisweet all the way. Feel free to use whatever you prefer though. Bittersweet chocolate would be amazing in this recipe as well. I used regular sized chocolate chips but little mini chocolate chips would be a great addition.

    7. The right texture

    For the graham crackers, make sure you ground them up until you have course crumbs. You don’t want them too fine, like graham flour, because you want to add some texture in your cookie dough.

     
    Adding chocolate chips and graham crackers to the cookie dough.

    How to assemble the S’mores Cookie Dough Balls

    Now for the fun part, time to assemble those s’more cookie dough balls.  

    Am I the only one who loves a picture of a good dough ball?

    Take a regular sized marshmallow and surround it with cookie dough (about ¼ cup of dough) until it is fully surrounded on all sides. Make sure there are no notable gaps in the cookie dough or all of the marshmallow will leak out while baking.

     
    showing the steps to encase a marshmallow in cookie dough to make the cookie
     
     
    These cookie dough balls are huge.  The dough ball is in a hand to visualize the size.  It takes up ⅓ of the hand
     

    Put the dough balls into the freezer for about 15 minutes then transfer to a parchment paper lined (or greased) cookie sheet. Meanwhile, don’t forget to preheat your oven!

     
    Graham cracker  chocolate chip cookie and marshmallow cookie dough balls
     

    Bake at 375 for 9-13 minutes. You know its done when you see the edges are nicely browned, the top is just starting to brown, but the center still looks gooey.

    The Key to Perfect S’mores Cookies: Always Under Bake Your Cookies 

    Lastly, always UNDER BAKE your chocolate chip cookies!  Or in this case, your S’more cookies.  How you bake these cookie will be the difference between an amazing and an average cookie.  They will continue baking as they sit on the hot cookie sheet and will be perfectly “done” when cooled.  

    By “done” I mean “gooey”.  Which is perfect in my book.  

    Here are the cookies straight out of the oven.  

    Don’t these look like cute little cookie dough volcanoes?

     
     
     
    A cookie that look like little marshmallow volcanoes when they come out of the oven.  The melting marshmallow looks like white lava coming out of the cookie dough.
     

    Look at the marshmallow “lava” peeking out of the crevices. Yum! 

     
    Missouri Girl Home created a cookie that is a combination of a smores and a chocolate chip cookie
    However, these cookies will deflate slightly as they cool.

    Important Note: Remember to under bake the cookies and let them sit on the baking sheet for at least 10 minutes to finish baking.

    Just look at these amazing mounds of gooey s’more yumminess!  

     
    Missouri Girl Marshmallow Lava S’mores Cookies. A graham cracker chocolate chip cookie with an ooey, gooey, lava center of melty mashmallow. Missouri Girl. Missouri Girl Blog.
     

    Enjoy!

     

    Lava s'mores cookies which is chocolate chip graham cracker cookie dough filled with melted marshmallow

    Marshmallow Lava S’mores Cookies

    Melinda | Missouri Girl
    This marshmallow cookie combines a s'mores and a chocolate chip cookie to create perfectly gooey s'mores cookies with marshmallow lava inside
    5 from 2 votes
    Print Recipe Pin Recipe
    Prep Time 10 mins
    Cook Time 10 mins
    freezing/cooling time 20 mins
    Total Time 40 mins
    Course Dessert
    Cuisine American
    Servings 9 Large Cookies

    Ingredients
      

    • 1 stick salted butter softened
    • ½ cup light brown sugar packed
    • ¼ cup sugar
    • 1 egg large
    • 1 teaspoon vanilla extract pure
    • 1 cup + 3 tbsp flour all purpose
    • ½ "heaping" tsp baking soda (or approximately ¾ tsp)
    • ½ teaspoon salt
    • 1 cup chocolate chips semisweet
    • 7 sheets graham crackers finely crushed
    • 9 marshmallows regular sized

    Instructions
     

    • Line a cookie sheet pan with parchment paper (or lightly grease your cookie sheet).

    Make the dough

    • In a medium bowl beat butter, brown sugar, and sugar with hand held mixer until blended well.
    • Add the egg and vanilla and beat until creamy and fluffy.
    • Add the flour, baking soda, and salt. Mix on low until just combined.
    • Stir in the chocolate chips and graham cracker crumbs.

    Assemble the S'mores Cookies

    • Take one marshmallow and mold approximately ¼ cup cookie dough around it. Place it on a freezer safe plate.
    • Repeat with the rest of the dough and marshmallows.
    • Place the dough balls into the freezer for 10 minutes and then transfer onto a parchment paper lined (or lightly greased) cookie sheet.
    • Meanwhile, preheat the oven to 375 degrees.

    Bake

    • Bake 9-13 minutes until edges are lightly browned, the top is just starting to brown, and center is still gooey.
    • Take the cookies out of the oven and allow them to sit on the baking sheet to finish baking for at least 10 minutes.

    Notes

    Store in an airtight container for up to 2 days. I suggest heating them up in the microwave for about 15 second before eating. Enjoy!

    Keyword best gooey cookies, Chocolate cookies, Cookies, Gooey Cookies, Lava Cookies, Missouri Girl Home, S’mores, S’mores Cookies, Special occasion cookies, Summer desserts
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    Reader Interactions

    Comments

    1. Jaye says

      September 25, 2020 at 1:42 pm

      5 stars
      Easy to follow recipe. These huge gooey cookies were a hit!

      Reply
      • Melinda says

        September 25, 2020 at 6:17 pm

        Thank you! I’m so glad you found the instructions easy to follow and that you enjoyed them.

        Reply
    2. Krista says

      October 12, 2020 at 11:19 am

      These look amazing! I’ll definitely be making them this week!

      Reply
      • Melinda says

        October 12, 2020 at 12:52 pm

        Thank you Krista! Fall is in full swing here in Missouri and I’m feeling like some s’mores as well!!!

        Reply
    3. Libbie says

      October 17, 2020 at 8:26 am

      I love smores and can’t wait to try this recipe!

      Reply
      • Melinda says

        October 17, 2020 at 9:54 pm

        Hope you enjoy them as much as I do!

        Reply
        • Beth says

          August 22, 2021 at 9:14 pm

          5 stars
          These cookies are delicious, I highly recommend making up a batch! For anyone who is like me and already had graham cracker crumbs ( Honey Maid Crumbs) on hand, use 1 1/4 cup crumbs. At least this is what I did and they turned out great! Thanks again for the recipe, so yummy!

          Reply
          • Melinda says

            August 23, 2021 at 9:06 pm

            Hi Beth! So glad you enjoyed them. Amazing graham cracker crumb tip!!!!

            Reply

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    Melinda at countertop of MissouriGirl.com I’m Melinda. I’m a wife, mother, physical therapist, runner, and a born and bred Missouri Girl. I love creating a cozy home on a budget and created Missouri Girl Home to bring inspiring, beautiful, and budget-friendly ideas to your home. Read more about Mel.

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