Description
I made this the first time because I wanted all of the flavors of classic campfire s’mores without needing an actual campfire, and I honestly did not expect it to disappear as fast as it did. Once I saw the melted chocolate, toasted marshmallows, and buttery graham crumble coming together in the skillet, I already knew this one was going to be a repeat recipe. Everything people love about traditional s’mores gets baked into one warm gooey cast iron dessert with a rich brown butter chocolate chip cookie base that feels cozy from the very first bite.
As it bakes, the edges turn golden and slightly crisp while the center stays soft and molten with little pools of melted chocolate throughout. One of my favorite things about making this recipe is watching the marshmallows on top slowly toast and turn golden because it instantly gives it that nostalgic campfire look and flavor. The buttery graham cracker crumble adds just enough crunch to balance all of the gooey chocolate and soft cookie texture underneath.
I also love serving this straight from the skillet while it is still warm because everyone immediately starts reaching for a spoon before it even has time to cool down. Every bite gives you melted chocolate, toasted marshmallows, buttery graham flavor, and soft warm cookie all together with just a little flaky sea salt to keep the sweetness balanced.
This has become one of those desserts I pull out for movie nights, holidays, weekend treats, or anytime I want something fun that people get excited about the second it hits the table. It feels rich, comforting, and a little dramatic in the best way, and it is usually one of the first recipes people ask me for after trying it.
Crispy edges with a gooey molten center. The cast iron skillet creates perfectly golden buttery cookie edges while keeping the center soft, warm, and loaded with melted chocolate.
Toasted marshmallows make it feel like real campfire s’mores. The golden marshmallow topping creates the nostalgic campfire flavor everyone loves without needing an actual fire.
Brown butter adds rich bakery-style flavor. Browning the butter gives the cookie base a deep caramelized flavor that makes this dessert taste homemade and gourmet at the same time.
Easy enough for beginner bakers. This recipe is very forgiving and comes together in one skillet with simple ingredients while still looking incredibly impressive.
Perfect for sharing. Served warm directly from the skillet, this dessert is made for scooping and sharing around the table.
The texture combination is incredible. Soft gooey cookie, melted chocolate, toasted marshmallows, crunchy graham cracker crumble, and flaky sea salt create the ultimate sweet and salty dessert experience.
It feels nostalgic but elevated. This recipe keeps all the classic s’mores flavors people already love while transforming them into a rich bakery-style cast iron dessert.
The warm cast iron presentation makes it extra cozy and inviting. The gooey marshmallows, melted chocolate, and rustic skillet create the ultimate comforting homemade dessert experience.
Add the butter to a medium saucepan over medium heat. Allow the butter to melt completely, then continue cooking while stirring often until the butter becomes golden brown and smells nutty. Remove from heat and let cool for 10 minutes.
In a large mixing bowl, whisk together the brown butter, brown sugar, and granulated sugar until smooth. Add the eggs and vanilla extract and whisk until fully combined.
Add the flour, baking soda, and salt and mix until a thick cookie dough forms. Fold in the chocolate chips and milk chocolate chunks.
Preheat oven to 350°F.
Lightly grease a 10-inch cast iron skillet with butter or nonstick spray. Press the cookie dough evenly into the skillet creating a slightly thicker edge around the outside.
Bake for 18–22 minutes until the edges are deep golden brown and the center is still slightly soft. The cookie will continue setting as it cools.
Remove the skillet from the oven and arrange the marshmallow halves across the top of the warm cookie.
Return the skillet to the oven for 2–3 minutes until the marshmallows become soft and lightly toasted.
While the marshmallows toast, combine the crushed graham crackers and melted butter in a small bowl until evenly coated.
Remove the skillet from the oven and immediately sprinkle the buttery graham cracker crumble over the marshmallows and cookie surface.
Drizzle the melted milk chocolate across the top in thick ribbons.
Lightly sprinkle flaky sea salt across the warm chocolate and toasted marshmallows for the classic sweet and salty s’mores flavor.
Allow the skillet cookie to cool for 10 minutes so the center becomes gooey and scoopable while still staying warm and soft.
Serve warm directly from the cast iron skillet with spoons for scooping into the gooey marshmallow and melted chocolate center.
Servings 8
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.
• Browning the butter gives the cookie base a rich caramelized flavor that makes this skillet dessert taste homemade and bakery-quality.
• The cookie should still look slightly soft in the center when removed from the oven because it continues baking in the hot cast iron skillet.
• Large marshmallows create the classic gooey campfire-style s’mores texture and toast beautifully in the oven.
• Milk chocolate melts smoothly and creates the most classic nostalgic s’mores flavor profile.
• Graham cracker crumble adds crunch and balances the soft gooey marshmallow topping.
• Flaky sea salt enhances the chocolate flavor and balances the sweetness of the marshmallows and cookie base.
• Cast iron skillets create crispy buttery cookie edges while keeping the center soft and gooey.
• This dessert is best served warm directly from the skillet for the ultimate molten chocolate and toasted marshmallow texture.
• Leftovers can be reheated in the oven for a few minutes to soften the marshmallows and chocolate again.