S’mores Bars

A while back this little idea popped into my head to make s’mores bars. A graham cracker crust on the bottom, followed by a layer of fudge brownies, and on top some mini marshmallows all golden brown and gooey. For this recipe, you can either use your own fudge brownie recipe, or pick up a box mix from the store. The box mix I found was Betty Crocker and came with a packet of Hershey’s syrup to go with the mix. I thought this was genius for s’mores bars since a Hershey’s chocolate bar is most often used when making real s’mores over a fire. Also, the fudginess mimics the melted chocolate on real s’mores.

They didn’t turn out quite how I expected, and the brownies kind of overwhelmed everything else. But they were very delicious and pretty on top with the caramelized marshmallows. I used a 9 x 9 pan, and perhaps the marshmallows and graham cracker would have been able to shine more with an 8 x 8 pan instead. I still feel like sharing this recipe, though, so here it is.

Fudge brownies with a graham cracker crust and caramelized marshmallow topping
Fudge brownies with a graham cracker crust and caramelized marshmallow topping

By the way, National S’mores Day is Monday, August 10.

You Will Need

  • 6 graham cracker sheets
  • 2 Tbsp unsalted butter, melted
  • 2 Tbsp sugar
  • Brownie mix, and whatever else is needed to make it as per the directions, or your own brownie recipe
  • 2-1/2 cups mini marshmallows
  • A square 9″ x 9″ pan


Step 1: Preheat oven to 350° F and grease the baking pan. Break up the graham crackers and place them into a food processor with blade. Pulse a few times to break them up even more, then grind them up on a low speed until finely chopped.

Step 1

Step 2: In a medium bowl, combine the melted butter, sugar, and graham cracker crumbs until well mixed. Press into the greased baking pan and bake for 10 minutes, or until golden brown around edges.

Step 2A
Crushed graham cracker and butter mixture.
Step 2B
Graham cracker crust pressed firmly into pan.

Step 3: While the crust is baking, mix up the brownies as per the instructions you are following. When the crust is done, remove from oven. (You may need to adjust the oven temperature at this time, following your instructions.)

Step 3A
Brownie batter.
Baked and golden brown crust.
Baked and golden brown crust.

Step 4: Pour prepared brownie batter over the crust and smooth out. Sprinkle the marshmallows on top, leaving some room in between to allow for expansion.

Step 4A Step 4B

Step 5: Bake as per the brownie directions. They’re done when a toothpick comes out mostly clean about 2″ from the edge. Allow to cool before cutting and serving.

Step 5

In somewhat unrelated news, I reopened my Etsy jewelry shop last weekend. If you haven’t had a chance to check it out, now’s a great time because everything is up for sale. A lot of the items that I’ve featured on this blog are also up for sale, so if you’ve ever wanted to own a piece of jewelry seen here, now’s your chance! There will a jewelry post going up tomorrow that you won’t want to miss!


4 thoughts on “S’mores Bars

  1. I wonder how they’d be if the marshmallows were baked into the brownies rather than on top? Would that bring out more of the marshmallow flavor or would it just get even more lost?


    1. It might. I hadn’t thought of that. Or maybe just adding more marshmallows on top so it’s a thicker layer. And maybe adding larger chunks of graham cracker in the batter would help.


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