Chocolate, marshmallows and cookies are three of my favorite things! So, of course, I love smores cookie bars!

These bars are sweet chocolatey goodness with a beautiful light marshmallow texture! They are perfect dessert bars for every occasion, especially for fall.

And, you don’t have to deal with any sticky mess from making s’mores over the fire. Yes to less mess!

If you love easy sweet treats like these, check out my sweet potato brownies, chocolate chip cookies and sour cream chocolate chip cookie recipes.

easy smores cookie bars recipe text overlay on a photo looking down on sliced cookie bars and a closeup photo of smores bars with chocolate and mini marshmallows

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all purpose flour
baking powder
graham crackers: you can either use whole graham crackers here or get graham cracker crumbs in the store.
salt
butter: salted or unsalted works here.
sugar: brown sugar is my preference but you can use white sugar too.
vanilla: this adds wonderful flavor.
eggs: brings everything together.
marshmallow fluff: or marshmallow creme is perfectly light and airy for these cookie bars.
chocolate chips: I prefer semi-sweet chocolate chips but you can use milk chocolate too.
optional: you can top the bars with your favorite add-ons. I like using broken pieces of chocolate bars and mini marshmallows.

Equipment

A cake mixer can be used here but a handheld one would do just fine. I also used the food processor attachment of my Ninja kitchen system to grind the graham crackers. You can skip this by just getting the crumbs instead.

Prep

Allow the butter to soften on the countertop before starting this recipe. Softened butter speeds things along when making the cookie dough base.

Add the graham crackers to the food processor or blender and grind until they become crumbs. Of course, you can skip this step if you got the graham cracker crumbs.

Preheat the oven to 350°F.

Line your baking tray (I used a 9×13-in tray) with parchment paper so you can remove the bars easily once they’re done.

Here’s a look at the prepped ingredients.

Mix ingredients

Add the soften butter and brown sugar to a stand mixer or mixing bowl and combine until they become light and fluffy. This can take about 2 minutes on medium speed.

Add the eggs and vanilla and continue mixing for another 1 to 2 minutes.

In a separate bowl, combine the graham cracker crumbs, flour, baking powder and salt.

Add the dry ingredients a little at a time to the butter-sugar-eggs mixture. Incorporate fully. The texture should resemble thick cookie dough batter.

make cookie dough for s'mores cookie bars

Assemble

Divide the batter in half. Using one half of the batter, press down onto the base of the parchment-lined baking tray.

Spread the marshmallow fluff on top of the graham cracker cookie dough layer. You might need to be a bit gentle here when spreading.

layer on marshmallow fluff for smores bars

Sprinkle the chocolate chips on top of the fluff. Make sure to get the chocolate chips everywhere. When it comes to chocolate, more is better in my eyes!

layer of chocolate chips on marshmallow fluff for smores bars

Add pieces of the remaining half of the dough on top of the chocolate chips so you can see glimpses of the marshmallow fluff and chocolate.

Bake

Bake for 30 to 32 minutes. The edges should be golden brown.

Remove from the oven and add your toppings so they can slightly melt onto the smores bars.

s'mores cookie bars with mini marshmallow and broken chocolate bar pieces

Set aside to cool for about 1 to 2 hours. Cut the cooled treat to form 24 smores cookie bars.

Serve warm or chilled. Store in the fridge for 2 to 3 days or in the freezer for 2 to 3 months. You can defrost the bars in the microwave! The chocolate chips become melty and the warm bar is just divine!

More sweet treats and delicious desserts

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5 from 1 vote