Name: S'mores Chocolate Chip Cookies
Prep time: 30 min
Cook time: 10 min
Total time: 120 min
Ingredients: 1/2 cup unsalted butter (melted); 1/2 cup dark brown sugar; 1/4 cup granulated sugar; 1 1/2 teaspoons vanilla extract; 1 large egg (room temperature); 1 1/8 cups all-purpose flour; 1 teaspoon cornstarch; 1/2 teaspoon baking soda; 1/2 teaspoon fine sea salt; 1 cup semisweet chocolate chips; 20 graham cracker squares; 4 1/2 milk chocolate Hershey bars; 9 marshmallows (cut in half)

These s'mores chocolate chip cookies have all the nostalgia of your favorite campfire treat... because there's an entire s'more baked inside! I tested this recipe to perfection to ensure we get chewy chocolate chip cookies packed with toasty marshmallow, crisp graham cracker, and melty chocolate in every bite.

S'mores cookies with toasted marshmallow, graham cracker crumbs, and milk chocolate bar on a crinkled piece of parchment paper.

If you love s'mores as much as I do, then you'll agree that these cookies are almost too good to be true!

Many of the recipes I found for s'mores cookies simply added mini marshmallows and graham cracker crumbs to a chocolate chip cookie, and that's not what I was craving. I knew these s'mores cookies needed to be a little over-the-top, with a golden brown marshmallow and a snappy graham cracker just like a real s'more.

Two s'mores cookies, one with toasty marshmallow and chocolate and the other one upside down with a graham cracker base.

This recipe took lots of trial and error to get just right. I tested everything from assembly methods to whether or not to chill the dough to cookie size to bake time. These cookies had to be perfect, and the extra rounds of testing were well worth the effort!

My method for assembling the cookies is the key to their awesomeness. We start by layering a s'more: a graham cracker square, a couple pieces of Hershey's chocolate, and a marshmallow. Then we'll add a ring of cookie dough that hugs the marshmallow - allowing it to peek through and create that toasty marshmallow center - and sits right on top of the graham cracker and chocolate. The graham cracker crumbs on top and extra chocolate bar pieces make these cookie picture-perfect.

These bakery-worthy cookies will be the best s'more you've ever had!

And if you love chocolate chip cookies with a little something extra, you'll want to check out my brown butter toffee chocolate chip cookies and my chocolate chunk pretzel cookies, too.

Ingredient Notes & Substitutions

See recipe card at the bottom of this post for full ingredient list and measurements.

Recipe ingredients with labels on a gray background.

Graham crackers - We're using whole graham crackers for the base of each cookie and graham cracker crumbs to decorate the tops. I used Honey Maid graham crackers.

Marshmallows - Regular-sized marshmallows work best for creating that golden-brown cookie center. I used Jet-Puffed marshmallows.

Milk Chocolate Bars - Classic Hershey's milk chocolate is the move here for that authentic s'mores flavor. There are pieces of chocolate bar baked inside each cookie and pressed on top for that picture-perfect look.

Butter - Melted butter helps to create a chewy cookie (and it means we don't have to wait for it to come to room temperature before we start baking).

Dark Brown Sugar - The higher molasses content in dark brown sugar adds extra moisture and a deeper flavor that pairs beautifully with the chocolate and marshmallow. I really prefer dark to light brown sugar in this recipe, but light brown sugar will work in a pinch.

Cornstarch - A small amount of cornstarch in the dough helps create a tender, soft texture. My no chill chocolate chip cookies use the same trick, and I use it for these s'mores cookies too because it really works.

Special Equipment

You don't need any special tools to make this recipe, though a medium-sized (1 ½ Tablespoons) cookie scoop does come in handy for scooping the cookie dough into uniform sizes.

Step-By-Step Recipe Instructions

See recipe card at the bottom of this post for detailed recipe instructions.

Wet ingredients whisked together in a glass mixing bowl.

Step 1: Make the cookie dough. Whisk to combine melted butter, white sugar, brown sugar, and vanilla. Add egg and whisk well until the mixture is glossy and a bit lighter in color.

Dry ingredients whisked together in a glass mixing bowl.

Step 2: In a separate bowl, whisk to combine flour, cornstarch, baking soda, and salt.

Cookie dough with chocolate chips in a glass mixing bowl with a wooden spoon.

Step 3: Add the flour mixture to the butter mixture and stir gently until just a few streaks of flour remain. Fold in chocolate chips.

Graham crackers topped with squares of chocolate and marshmallows on a baking sheet.

Step 4: Assemble the cookies. Place graham cracker squares onto a tray. Place 2 rectangles of a Hershey bar onto each graham cracker followed by one marshmallow half per cookie.

S'mores topped with cookie dough on a baking sheet.

Step 5: Scoop a 1 ½ Tablespoon ball of dough and use your thumbs to press a hole into the middle so that the dough is donut shaped. Place the ring of dough over the marshmallow. Repeat for each cookie.

Assembled s'mores cookies with graham crackers and marshmallows on a baking sheet.

Step 6: Smash a couple of graham crackers into crumbs in a sealed bag using a rolling pin. Sprinkle the crumbs over the cookie dough balls. Chill the cookies for 30 minutes.

Baked cookies with marshmallow centers on a baking sheet.

Step 7: Bake the cookies at 350°F on baking sheets lined with parchment paper for 10 to 12 minutes or until the edges are golden and the marshmallows are toasty. Immediately press a rectangle of milk chocolate onto each cookie.

Allison's Top Tips

The dough ring doesn't need to be perfect! If the dough seems too sticky to shape around the marshmallows, trying chilling it in the fridge for 10-30 minutes to firm it up a bit first.

Don't skip chilling the assembled cookies. It keeps both the cookie dough and marshmallow from spreading too much when the cookies bake.

Don't crowd the pan. Baking only 6 cookies at a time leaves room for hot air to circulate and the cookies to spread without bumping into each other.

Have your Hershey's rectangles ready to go before the cookies come out of the oven. You want to press them on immediately while the cookies are still hot so the chocolate settles into the marshmallow before it sets.

Two halves of a s'mores cookie with a marshmallow pull and melty chocolate.

Storage Instructions

These cookies stay fresh for 4 days stored in an airtight container at room temperature. And in case you were worried, no, the graham cracker on the bottom doesn't get soggy, even after a few days. 😉

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