If you love the nostalgic flavors of roasted marshmallows and melted chocolate, these Gooey S’mores Brownies are about to become your new favorite dessert. This easy recipe combines everything you adore about a classic campfire s’more with the rich, fudgy texture of a homemade brownie. The result is a decadent fall treat that’s perfect for cozy nights in or festive gatherings.

Each brownie starts with a buttery graham cracker crust, topped with a thick layer of chocolatey brownie batter, and finished with gooey marshmallows toasted to golden perfection. The mix of crunchy, chewy, and melty layers creates an irresistible combination that feels like a campfire classic baked right in your oven. These brownies are simple to make but deliver big on flavor and fun.

Whether you are hosting a fall party, planning a holiday dessert table, or just craving something sweet after dinner, these S’mores Brownies will be a crowd-pleaser. Serve them warm for the ultimate gooey experience, or pack them up for a sweet treat on the go. Bring the cozy magic of autumn campfires into your kitchen with this easy and delicious s’mores dessert.

If you give this recipe a try, post a pic and tag @colbytroy on Instagram so I can see your beautiful creations!

Ingredients

S’mores Brownies

• 1 cup unsalted butter
• 8 ounces dark chocolate chips or chopped
• 1 1/2 cups granulated sugar
• 4 large eggs
• 1 tsp vanilla extract
• 1 cup all-purpose flour
• 1/2 tsp salt
• 1 cup graham cracker crumbs
• 2 cups mini marshmallows
• 1/4 cup melted chocolate for drizzle

Step By Step Instructions

Follow these step-by-step instructions, then scroll down to the recipe card for a full ingredients list and method

How to make the perfect Gooey S’mores Brownies

Preheat your oven to 350°F. Grease and line a 9in baking dish with parchment paper.

In a heatproof bowl set over a saucepan of simmering water, melt the dark chocolate and unsalted butter, stirring until smooth and melted together.

Remove bowl from heat (dispose of water) and whisk/mix in the granulated sugar into the melted chocolate mixture until well combined.

Add in the eggs, one at a time, stirring after each egg added.

After all eggs are added, stir in the vanilla extract.

Gradually fold in the all-purpose flour and salt, mixing until a smooth brownie batter forms.

In a separate bowl, crush graham crackers into crumbs using a rolling pin or a food processor. (You can also buy boxed graham cracker crumbs that will work too!)

Pour HALF of the brownie batter into the prepared baking dish, smoothing it out evenly. Sprinkle HALF of the graham cracker crumbs over this layer.

Pour the remaining brownie batter to form the second layer. Smooth out evenly and top with the remaining graham cracker crumbs.

Place the baking dish in the preheated oven and bake for 30-40 minutes or until the edges of the brownie are starting to firm.

Remove pan from oven and sprinkle the marshmallows over the top of the brownie (BE CAREFUL the pan in hot).

Place plan back in oven and cook for approx. 10 minutes or until marshmallows are golden brown.

Once the bars are baked and cooled, drizzle the melted chocolate over the marshmallow topping.

Storing your S’mores Brownies

Store: Once the brownies have cooled completely to room temperature, store them in an airtight container in the fridge for up to 1 week.  

Freeze and Thaw: I do not recommend freezing the s’mores brownies. The texture of the toasted marshmallow doesn’t work well after freezing and thawing.

Tools & Supplies for Making S’mores Brownies:

• Brownie Pan
• Mixing Bowls
• Hand Mixer
• Parchment Paper