This S’mores Oatmeal Cookie Skillet combines two of the best desserts into one irresistible treat. Gooey chocolate chip cookie dough mingles with melty marshmallows and crunchy graham crackers, all baked to perfection in a skillet — it’s a warm, gooey dessert that’s perfect for feeding a crowd and guaranteed to disappear in no time!
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What Is a S’mores Oatmeal Cookie Skillet?
A s’mores oatmeal cookie skillet is exactly what it sounds like! It’s one of our all-time favorite desserts!
We took all the soft, chewy texture of an oatmeal cookie, and turned it into a skillet recipe. Then, we topped it off with chocolate chips and marshmallows to infuse it with all of the flavors of gooey, decadent s’mores. Easier than a cookie and so much less mess than s’mores, this oatmeal cookie skillet is truly to die for. Plus, it’s ready in minutes and great for feeding a crowd!
Ingredients You’ll Need
This oatmeal cookie skillet comes together with just 9 pantry staples for a super simple, budget-friendly recipe! Here’s everything you’ll need:
- Butter – This helps create a rich, buttery flavor and browns the oats.
- Brown Sugar – We use light brown sugar to sweeten this oatmeal cookie skillet while keeping the texture soft and moist.
- Oats – Old-fashioned oats work best to provide a dense, slightly chewy texture.
- Flour – We use regular all-purpose flour to help form the base of the oatmeal cookie skillet.
- Graham Cracker Crumbs – You can find pre-made graham cracker crumbs in the baking section of your local grocery store. Or, easily make your own by adding graham crackers to a sealable bag, and crushing them up into fine crumbs.
- Baking Powder (NOT baking soda) – Make sure your baking powder is fresh for a fluffy s’mores oatmeal cookie skillet.
- Salt – Just a sprinkle helps enhance the rest of the ingredients for the best flavor.
- Marshmallows – We prefer to use mini marshmallows so you get gooey goodness in every bite. However, regular-sized varieties work, too.
- Chocolate Chips – We use semi-sweet chocolate chips, but dark or milk chocolate also tastes great! You can even chop up chocolate bars. Look for dairy-free varieties, if needed.
How to Make an Oatmeal S’mores Cookie Skillet
Easier than any oatmeal cookie recipe you’ll ever make, this skillet bakes in 20 minutes!
- Create the oatmeal cookie base. In a large bowl, combine the butter and sugar, beating it with a hand mixer or stand mixer until it is light and fluffy. Then, add the oats, flour, graham cracker crumbs, baking powder, and salt. Beat again gently until the ingredients are combined and crumbly.
- Layer. Press ½ of the oat mixture into the bottom of a cast-iron skillet. Sprinkle marshmallows and chocolate chips on top followed by the remaining oat mixture.
- Bake. Place the skillet in the oven until the oats are golden brown and the cookie is fluffy. Sprinkle more marshmallows and chocolate chips on top. Then, bake again until melted and gooey.
- Cool. Let the skillet cool slightly, and serve warm!
Variations
For this s’mores oatmeal cookie skillet, we kept the recipe pretty simple. However, you can get creative, too, by mixing and matching a variety of add-ins and toppings like:
- Dried Fruit
- Peanut Butter or Peanut Butter Chips
- Chopped Nuts
- Cinnamon
- Candy Pieces
- Icing
- A Drizzle of Chocolate Sauce
- A Sprinkle of Sea Salt on Top
- A splash of Vanilla Extract
How to Serve
Once removed from the oven, allow your s’mores oatmeal cookie skillet to cool and set for about 10 minutes. Then, top it off with a dollop of ice cream or whipped cream, and serve it warm with a few spoons!
Storage
This s’mores oatmeal cookie skillet is best served right from the oven while it’s still warm. However, you can store leftovers in an airtight container at room temperature or in the fridge. They will stay fresh for one to two days.
Or, slice the cookie skillet into pieces, transfer them to a sealable bag, and freeze them for later! Cookie pieces will stay fresh in the freezer for up to three months.
Thaw leftovers in the fridge overnight. Then, serve cold or at room temperature. Or, warm them for a few seconds in the microwave just until heated through!
S’mores Oatmeal Cookie Skillet Common Questions
For skillet cookies, rather than making a bunch of individual cookies, the dough is spread in a skillet and baked. While it has the same texture as traditional cookies, it’s typically served in slices, similar to pie.
Skillet cookies are done when the center is still a little gooey but the edges are golden brown and slightly crisp.
You do not need to grease your pan for cookies. But if you want to ensure a skillet cookie comes right out of the pan, you can spray it with non-stick cooking spray or use a round of parchment paper in the bottom.
Yes! Just pop the cookie in the microwave or put it back in the oven at 350 degrees for a few minutes.
More S’mores Desserts You’ll Love
If you didn’t already know, we adore s’mores! As a result, we’ve got tons of s’mores-inspired treats to make all year long.
S’mores Oatmeal Cookie Skillet
Ingredients
- 1 cup butter softened
- 1 cup light brown sugar firmly packed
- 1 cup old-fashioned oats
- 3/4 cup all-purpose flour
- 1 cup graham cracker crumbs
- 1 teaspoon baking powder
- 1 teaspoon kosher salt
- 2 cups mini marshmallows divided
- 1 cup semisweet chocolate chips + more for topping
Instructions
- Preheat the oven to 350 degrees Fahrenheit.
- Add the butter and sugar to a large bowl, and beat until light and fluffy.1 cup butter, 1 cup light brown sugar
- Add the oats, flour, graham cracker crumbs, baking powder, and salt. Beat again on low until the ingredients are well-combined a crumbly.1 cup old-fashioned oats, 3/4 cup all-purpose flour, 1 cup graham cracker crumbs, 1 teaspoon baking powder, 1 teaspoon kosher salt
- Press ½ of the oat mixture into the bottom of a 10-12” cast-iron skillet. Sprinkle ½ of the marshmallows and chocolate chips on top followed by the remaining oat mixture.2 cups mini marshmallows, 1 cup semisweet chocolate chips + more for topping
- Bake for 15 minutes.
- Remove the skillet from the oven, and add the remaining marshmallows and extra chocolate chips, if desired.
- Bake again for 5 minutes.
- Remove the skillet from the oven, and cool for 10 minutes.
- Serve warm, and enjoy!
- Store in an airtight container at room temperature or in the fridge for 1-2 days.
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Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
