Best S'mores Cookie Bars (Recipe & Photos)

ByAlexis

Graham cracker cookie dough sandwiches the layers of chocolate and marshmallow fluff in these delicious bars.  S'mores cookie bars have all the nostalgic flavors of a classic S'mores without the campfire. 

3 cookie bars stacked on a blue plate with a layer of gooey marshmallow fluff and chocolate

I first made this recipe for a team party after a track meet. It is the perfect dessert for 4th of July and any summer party.

I have a few S'mores recipes. The Campfire Cookies have been a favorite for over 10 years.

Graham cracker crumbs in a buttery cookie dough. 

Gooey marshmallow creme. 

An even layer of rich Hershey's chocolate bars.

Instructions

I use a rolling pin to crush up the graham crackers, but I have also seen a box of graham cracker crumbs at the store in the baking aisle.

  1. By lining the baking dish with parchment paper, the bars can easily be lifted out after they cool.
  1. I have made these with regular Hershey's bars and the XL 7oz bars. The XL bars are by far the best for getting the perfect chocolate ratio.
  1. Slather that delicious marshmallow creme over the chocolate.
  1. Press the remaining dough on top. The mallow creme will bubble up when it bakes.
Pro Tip: Store these S'mores bars in the fridge.  Believe it or not, the marshmallow creme stays soft and gooey!

Variations

Just like there are so many variations to S'mores, you can get creative! Here are a few ideas:

  • Peanut Butter - Add a layer of creamy peanut butter on top of the chocolate; if you warm it first, it's easy to spread.
  • Deluxe - Add carmel! Oh! It's so good and so messy with a layer of caramel sauce.
  • Double (or Triple) Chocolate - Break up full-size bars of milk chocolate, dark chocolate, and white chocolate and vary how you lay them all out.

Storage

Store in an airtight container in the fridge for 3-5 days. Enjoy at room temperature. The marshmallow stays soft in the fridge but helps prevent the mallow goodness from oozing out when they are cut into bars.

Looking for other recipes like this? Try these: 

You can easily half this recipe and make it in an 8x8 baking dish.

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