S’mores Brownies

S'mores Brownies

Oh sweet Lord in heaven of all things that are good in this world….these brownies. I don’t even know what to say about them.

They are kind of amazing.

We had another work potluck party last week and needed a dessert. I brought brownies to the last party and everybody seemed to really like them, so I wanted to try another brownie recipe. The theme for this potluck was All-American. Tell me, what dessert screams summer and is more American than s’mores?! Exactly. Nothing. Don’t even try to tell me anything else.

These brownies taste just like a s’more and you don’t need a campfire to make them! They have all of the essential components. Graham cracker crust? Check. Chocolately brownie layer? Double check. Ooey Gooey marshmallow layer? Oh heck yes! Even days later, the marshmallows are still perfectly gooey!

S'mores Brownies

The only thing I might do differently next time is do a slightly thinner graham cracker crust. I kind of wanted more brownie and less crust. But, since these still came out so good, I am giving you the recipe as I made it. If you want a thinner layer, go ahead and use a little less!

S'mores Brownies

**Update: After getting some comments about the thickness of the batter, I recreated the recipe and made some changes as of 2/15/2014. I increased the butter and chocolate and cut down on the flour and sugar. The recipe below reflects these changes.

S'mores Brownies

The campfire favorite – in a brownie!


For the graham cracker crust:

  • 2 1/2 cups graham cracker crumbs
  • 1/4 cup granulated sugar
  • 12 tablespoons melted unsalted butter

For the brownies:

  • 8 tablespoons unsalted butter
  • 8 ounces good quality bittersweet chocolate
  • 1 1/2 cups granulated sugar
  • 2 large eggs
  • 2 large egg yolks
  • 2 teaspoons vanilla extract
  • 1 cup flour
  • 1/2 cup unsweetened cocoa powder
  • 1/4 teaspoon salt
  • 1 10-ounce bag mini marshmallows


  1. Preheat oven to 350 degrees. Line a 9×13 baking dish with foil leaving some extra hanging off the sides. Lightly grease or spray with non-stick spray and set aside.
  2. To prepare the graham cracker crust, melt the butter in a microwave-safe bowl. Mix in the graham cracker crumbs and the sugar with the melted butter. Spread the mixture into the bottom of the baking dish, pressing down to create a crust in an even layer. Bake the crust for about 15 minutes or until golden. Remove the pan from the oven and set aside.
  3. While the crust is baking, prepare the brownie batter. Prepare a double boiler by placing a pot filled about half way with water on medium high heat. Place a glass bowl over the pot. Melt the butter and the chocolate together, stirring constantly. Remove from the heat and let cool for a couple of minutes.
  4. Beat in the eggs, egg yolks, sugar, and vanilla extract. Stir in the flour, salt, and cocoa powder. Pour the brownie batter on top of the graham cracker crust. Bake for about 30-35 minutes or until a toothpick inserted comes out mostly clean.
  5. Switch the oven to broil. Pour the marshmallows over the brownies, arranging in an even layer. Place the pan into the oven and by watching very closely, broil until the marshmallows just begin to char. I highly recommend standing near the oven while you do this to ensure that the marshmallows do not burn, checking every 45 seconds or so.
  6. Remove from the oven and let the brownies cool completely. To remove, gently lift using the extra foil. Pull the foil away and cut into squares. Store in an airtight container.
All images and text ©

S'mores Brownies



  1. I think my body just melted into the ground, I need to devour this! Best dessert in the world! :)


  2. I kind of like the thick layer of graham cracker crust, Stephanie! These look simply AMAZING. I am a fool for anything s’mores! I recently made a s’mores brown pie that you would love if you didn’t see it. S’mores are such a perfect summer treat and even better when you involve brownies! :)

  3. Oh my gosh, I am soooooooo drooling! That chocolate center with the marshmallows on top is sooooooo calling me!!

  4. These brownies sound awesome : ) I love s’mores but it’s such a summer / fall thing in my mind … so glad it’s that time of year again!

  5. I love all things s’mores! These brownies are amazing! The marshmallow topping looks perfect!

  6. Oh my goodness gracious! I MUST make these.

  7. Hey, actually… a question for you before I DO make these! Can you halve the recipe and bake it in an 8 x 8 pan, you think?

  8. SO just drooled at my desk! Deliciousness!! :) Pinned!

  9. Stephanie, I can’t believe how amazing these look!

  10. Wow, that looks fantastic! A big glass of milk with this and I’m a happy gal! Looks delish.

  11. Oh I think you a both wicked and super terrific at the same time. I know I have to make these but I am sure I will be addicted!! They look so gooey and delicious!

  12. Speechless! Must make these soon.

  13. oh my heavens!!!! I’d like a big pan of those!

  14. What spectacular brownies! So much better than a s’more!!!

  15. How did I drop by before and miss these… I am glad I came back. :) They look extra yummy. :)

  16. That crust is so thick and buttery looking. Yum.

  17. oh dear lord. pinned and will totally be making these.

  18. OMG! Who could possibly resist these!!

  19. WOW WOW WOW! These sounds absolutely mouthwatering..I wish I had one right now to faceplant into…Im definitely going to have to try these soon!

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  25. Didn’t work for me at all. The cracker crust was way too done before even spreading the batter on it. The batter was so super thick it broke up the crust and wouldn’t spread. Didn’t even make it to the marshmallow part because it was a huge disaster before then. Not sure what all went wrong.

    • Hi Lacy, I’m so sorry to hear that you had so many problems with the recipe. After a couple of people made similar comments, I recreated the recipe and agree. I’m not sure what happened as I did not have issues with the batter when I first made it. I think it just got transferred incorrectly here. I revised the ingredients and it should be much better now. If you ever give them a try again, please let me know if the revised recipe works better for you!

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  29. Did I miss the liquid? I did as recipe states only to have a batter so thick even the kitchen aid couldn’t stir it. I added at least a cup of butter milk to make it cookie dough thick and tried to spread over crust, which then broke apart…it was as big a disaster as it sounds. Would love to know the complete recipe…I have gone over this one 5 times and cannot find anything I did differently. Color me disappointed!

    • You are right, Rebecca. After a couple of people made similar comments, I recreated the recipe and agree. I’m not sure what happened as I did not have issues with the batter when I first made it. I think it just got transferred incorrectly here and I’m so sorry that you had so many problems with it. I adjusted the ingredients and it should be much better now. If you ever give them a try again, please let me know if the revised recipe works better for you!

  30. i made these last night and they were delicious. my only problem was that the graham cracker crust did not stick to the brownie and when i cut it, the crust completely crumbled. any solutions? should i add more butter to the crust?

    • I’m so glad you liked them, Kim! You can try adding more butter next time. You can also try baking the crust a little longer and see if that helps!

  31. These look amazing! But does it matter if I use unsalted or salted butter? Thanks!

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  34. Just pulled mine out of the oven and my husband is drooling! Mission accomplished!

  35. Trying w a box brownie mix Bc w 3 littles helping I just know something would get messed up from scratch- I hope it turns out just as well!

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  37. Did you buy actual graham cracker crumbs or just graham crackers in the food processor?

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  39. Making these right this minute and unless I over looked it I don’t see where you added the salt in the batter.

  40. I just drooled on my keyboard. Trying this recipe tonight!!!

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