This S’mores Oatmeal Cookie Skillet combines two of the best desserts into one irresistible treat. Made with simple ingredients and baked in a single skillet, it’s the perfect easy option for feeding a crowd!
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What Is a S’mores Oatmeal Cookie Skillet?
Apart from being one of our all-time favorite dessert recipes, a s’mores oatmeal cookie skillet is exactly what it sounds like! We took all the soft, chewy texture of an oatmeal cookie, turned it into a skillet recipe, and topped it off with chocolate chips and marshmallows for a gooey, decadent s’mores taste. Easier than a cookie and eaten with less than s’mores, it’s 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 – 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, but regular-sized varieties work, too.
- Chocolate Chips – We use semi-sweet chocolate chips, but dark or milk chocolate also taste great!
How to Make a S’mores Oatmeal Cookie Skillet
Easier than any oatmeal cookie recipe you’ll ever make, this skillet is easy to prepare and 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, and bake again until they’re melted and gooey.
- Cool. Let the skillet cool slightly, and serve warm!
For this s’mores oatmeal cookie skillet, we kept the recipe pretty simple. However, feel free to mix and match a variety of add-ins and toppings like:
- Dried Fruit
- Peanut Butter or Peanut Butter Chips
- Chopped Nuts
- Candy Pieces
- A Drizzle of Chocolate Sauce
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!
This s’mores oatmeal cookie skillet is best served right from the oven while it’s still warm. However, if you have leftovers, they can be transferred to an airtight container and kept at room temperature or in the refrigerator for 1-2 days. Or, slice it up, transfer it to a sealable bag, and keep it frozen for up to 3 months!
To serve, let leftovers thaw in the fridge overnight, and serve them cold, at room temperature, or warm them up in the microwave until heating through!
S’mores Oatmeal Cookie Skillet Common Questions
We don’t recommend it. Try our s’mores cookies instead!
No worries! Feel free to use a regular skillet instead! Just make sure it’s oven-safe.
Sure! Just swap out the flour for a 1:1 gluten-free all-purpose flour instead, and crush up your favorite gluten-free graham crackers.
More S’mores Desserts You’ll Love
If you didn’t already know, we LOVE s’mores! As a result, we’ve got tons of desserts to make all year long.
S’mores Oatmeal Cookie Skillet
- 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
- Preheat the oven to 350° Fahrenheit.
- Add the butter and sugar to a large bowl, and beat until light and fluffy.
- Add the oats, flour, graham cracker crumbs, baking powder, and salt. Beat again on low until the ingredients are well-combined a crumbly.
- 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.
- 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.
Nutrition information is automatically calculated, so should only be used as an approximation.