Gooey 5 Minute Prep S’mores Brownies

Name: Gooey 5 Minute Prep S’mores Brownies
Prep time: 5 min
Cook time: 2 min
Total time: 7 min
Ingredients: Graham Crackers (Enough to cover the bottom of the baking dish); 1/4 cup butter (melted); 1 pkg brownie mix 8x8 size; 1 cup chocolate chips; 7 ounces marshmallow cream or 8-ounce bag of marshmallows; Ingredients to make brownies according to the package directions

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These gooey S’mores Brownies are the easiest way to bring campfire flavor straight to your kitchen with layers of buttery graham crackers, fudgy brownie batter, melty chocolate, and golden brown marshmallows.

Easy, Gooey, and Ready in Minutes

If you’ve ever wished you could have s’mores without the campfire (and without the mess), these 5-Minute Prep S’mores Brownies are your answer. They’re soft and fudgy on the inside with that perfect crunchy graham cracker crust and a gooey marshmallow layer that toasts up beautifully under the broiler. Speaking of fudgy goodness, if you haven’t tried our Tiger Butter recipe yet, you’re missin’ out!

This recipe keeps all the best parts of classic s’mores: graham crackers, milk chocolate, and gooey marshmallow, but turns them into rich, sliceable brownies that stay soft for days! And if you’re cravin’ those classic campfire s’mores, check out this S’mores in the Oven recipe!

Ingredients You’ll Need

Graham Crackers
Butter, melted
Brownie mix (8×8 size)
Chocolate chips
Marshmallow cream or a Bag of marshmallows
Ingredients to make brownies according to the package directions

Step-by-Step Instructions

1. Build the Graham Cracker Base

Start by lining the bottom of an 8×8-inch baking dish with graham cracker squares. You can break or trim them slightly if needed to make them fit snugly. Brush the crackers with melted butter, which adds flavor and helps them stay crisp under the brownie layer.

A tray of graham crackers for the s'mores brownie base

brushing the graham crackers for the s'mores brownie base with butter

2. Mix the Brownie Batter

In a large mixing bowl, prepare your brownie batter according to the package directions. If you want to bump up the chocolate flavor, stir in a teaspoon of espresso powder or a handful of dark chocolate chips. Pour the batter evenly over your graham cracker crust, then use a flexible spatula to spread it into a smooth, even layer.

Pouring brownie batter over the graham cracker base

Brownie batter spread evenly across the graham crackers

3. Add Chocolate and Bake

Sprinkle chocolate chips across the top of the batter before baking. Follow the bake time on your brownie mix until a toothpick inserted in the center comes out with moist crumbs. Let the brownies cool for about 5 minutes before moving to the next step.

A layer of chocolate chips spread across the s'mores brownie base

4. Toast the Marshmallow Layer

Once baked, switch your oven to low broil. Top your brownies with mini marshmallows or a layer of marshmallow fluff. Broil on the top rack, at least six inches away from the heat, for just 1–2 minutes, until the tops turn golden brown and slightly melty. Watch closely! Marshmallows go from toasted to burned in seconds.

A layer of marshmallow paste on the s'more brownie mix

Spreading marshmallow on the s'mores brownies

If you’ve got a kitchen torch, this is the perfect time to use it for precise, evenly toasted tops.

5. Cool, Slice, and Serve

Let your brownies cool on a wire rack for at least 10 minutes so the marshmallow layer can set a little. Then slice into squares with a sharp knife coated in nonstick spray or lightly oiled; it’ll help you get clean cuts through that sticky, gooey top!

Storing and Reheating

To keep your brownies soft and fresh, store them in an airtight container lined with plastic wrap or parchment paper, separating the layers with plastic wrap or parchment paper. You can also freeze individual squares for up to a month, just thaw and warm slightly before serving so the chocolate gets melty again!

Frequently Asked Questions

Can I use homemade brownie batter?

Absolutely. If you’ve got a favorite homemade brownie recipe that’s rich and fudgy, use it instead of a boxed mix. Just make sure it fits a standard 8×8 pan.

Do I have to use marshmallow cream?

Nope! Mini marshmallows, or even large ones cut in half, will work perfectly. The cream just gives a smoother, spreadable layer. If you have any leftovers, you can also whip up a batch of Chocolate Cookies with Marshmallow!

Can I make these in a larger pan?

Yes! Double the recipe for a 13×9-inch pan. Just keep an eye on the bake time; thicker layers might need a few extra minutes.

How do I reheat them?

Pop a square in the microwave for 10–15 seconds to bring back that gooey s’mores texture and melty chocolate.