S’Mores Brownies have all the flavors of S’Mores baked into a brownie: graham cracker crust, chocolate brownie layer and marshmallows on top.

s'mores brownie with graham crackers and marshmallows in background

Baking is something that I love to do, but goodies can’t stick around my house very long since I have a tough time staying away from all that good stuff. I tend to stock my kitchen with loads of fruit, yogurt, and salad-at-the-ready, and I head to the gym every single day for a good, long workout. That’s the only way I can manage my life as a recipe developer. It’s worth it for brownies. And these s’mores brownies are indeed delicious!

ingredients displayed for making s'mores brownies

🛒 Ingredient Notes:

  • unsalted butter (you can use salted, but then you’ll want to use a little less salt)
  • graham cracker crumbs
  • granulated white sugar
  • salt
  • unsweetened chocolate
  • light brown sugar (can use dark, if that’s what you have)
  • vanilla extract
  • large eggs
  • all purpose flour
  • semi sweet chocolate (chunks or chips)
  • mini marshmallows
four photos showing how to make s'mores brownies

✏️ How to make S’Mores Brownies

*The full, printable recipe is at the end of this post.

  1. Preheat the oven to 325 degrees F. Line an 8×8 inch pan with foil so it hangs over the edges a bit. Spray with nonstick spray. (You can use 9×9 inch pan, but baking time might need a slight decrease and your end result will be a thinner brownie).
  2. Prepare the crust: In a medium bowl, mix the butter with the crumbs, sugar and salt. Press the crumb mixture into the bottom of the pan. Bake until golden, 15 to 20 minutes.
  3. Prepare the brownie layer: Place the butter and chocolate in a microwave safe bowl. Melt for 1 minute; stir. Melt another minute; stir. Keep microwaving at 1 minute intervals until the mixture is completely melted. (Alternately, you can melt this mixture in a heatproof bowl set over a pan of simmering water on the stove). Add the sugars, vanilla and salt into the melted chocolate and mix together. Add the eggs and beat vigorously until you see a thick and glossy batter. Stir in the flour and mix just until incorporated. Pour the batter over the baked crust. Bake until the top is set and a toothpick inserted into the middle comes out mostly clean, 35 to 40 minutes (You don’t want to over-bake the brownie. A little gooey inside is good.)
  4. Prepare the Topping: Remove the pan from the oven. Turn the heat on the oven to broil. Sprinkle the chocolate chunks over the baked brownie. Add a nice, thick layer of marshmallows next. Sprinkle graham cracker crumbs on top.
overhead shot of s'mores brownies in pan

Place your pan of brownies back into the oven (they should be 6 to 8 inches away from the heating element). Toast under the broiler until golden- KEEP AN EYE ON IT- it can go from golden to burned in a matter of seconds. 1 to 2 minutes under the broiler should be plenty. Cool for a few minutes, then use foil to remove brownies from the pan and set on a cutting board. Carefully pull the sides of the foil away from the marshmallows and brownies. 

➡️ Tips

  • Foil comes in handy when you line the pan. You can just slip the brownies out of the pan and place them on a cutting board. Peel back the foil and they’re ready for cutting.
  • When you add the marshmallows to the brownies, keep a close eye on them in the oven. Marshmallows can quickly go from perfectly golden to burnt, so it’s essential to monitor them closely and remove the brownies from the oven as soon as they’re toasted to your liking.
  • Store any leftover brownies in an airtight container at room temperature for up to several days.
overhead shot of s'mores brownies

✔️ Brownie Cutting Tips:

Use a large, WET and SHARP KNIFE to cut the brownies. Slice through the brownie, then clean the knife and slice through again with a clean, wet knife. Keep cleaning off the knife after each cut for the cleanest cuts.

overhead shot of s'mores brownies

❤️ What I Love About This Recipe:

  1. Lovely layers of graham cracker, chocolate, more chocolate, marshmallow and graham cracker sprinkles. Kinda like S’Mores on steroids.
  2. While traditional s’mores require a campfire or at least a heat source, s’mores brownies can be made in the comfort of your own kitchen, any time of the year. They’re a convenient way to enjoy the flavors of s’mores without the need for outdoor equipment.
  3. They evoke memories of cozy campfires and childhood summer nights spent toasting marshmallows and making s’mores.
s'mores brownie
s'mores brownie with graham crackers and marshmallows in background
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S’Mores Brownies

Everything you love about S'Mores, but in a brownie.
Prep: 30 minutes
Cook: 1 hour
Total: 1 hour 30 minutes
Servings: 12 brownies
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Ingredients

CRUST

BROWNIE

TOPPING

Instructions 

  • Preheat the oven to 325 degrees F. Line an 8×8 inch pan with foil so it hangs over the edges a bit. Spray with nonstick spray. (You can use 9×9 inch pan, but baking time might need a slight decrease and your end result will be a thinner brownie).
  • Prepare crust: In a medium bowl, mix butter with crumbs, sugar and salt. Press crumb mixture into the bottom of the pan. Bake until golden, 15 to 20 minutes.
  • Prepare the brownie: Place butter and chocolate in microwave safe bowl. Melt for 1 minute; stir. Melt another minute; stir. Keep microwaving at 1 minute intervals until mixture is completely melted. (Alternately, you can melt this mixture in a heatproof bowl set over a pan of simmering water on the stove). Add sugars, vanilla and salt into the melted chocolate and mix together. Add eggs and beat vigorously until you see a thick and glossy batter. Stir in flour and mix just until incorporated. Pour batter over the baked crust. Bake until top is set and toothpick inserted into the middle comes out mostly clean, 35 to 40 minutes (You don't want to over bake the brownie. A little gooey inside is good.)
  • Topping: Remove pan from the oven. Turn heat on the oven to broil. Sprinkle chocolate chunks over the baked brownie. Add a nice, thick layer of marshmallows next. Sprinkle graham cracker crumbs on top. Place your pan of brownies back into the oven (they should be 6 to 8 inches away from the heating element). Toast under the broiler until golden- KEEP AN EYE ON IT- it can go from golden to burned in a matter of seconds. 1 to 2 minutes under the broiler should be plenty.
  • Cool for a few minutes, then use foil to remove brownies from the pan and set on a cutting board. Carefully pull the sides of the foil away from the marshmallows and brownies. Cut brownies into 12 squares. Helpful tip: Use a large, WET & SHARP KNIFE to cut the brownies. Slice through the brownie, then clean the knife and slice through again with a clean, wet knife. Keep cleaning off the knife after each cut for the cleanest cuts.

Nutrition

Serving: 1brownie, Calories: 544kcal, Carbohydrates: 71g, Protein: 7g, Fat: 28g, Saturated Fat: 16g, Polyunsaturated Fat: 1g, Monounsaturated Fat: 8g, Trans Fat: 1g, Cholesterol: 102mg, Sodium: 226mg, Potassium: 250mg, Fiber: 3g, Sugar: 48g, Vitamin A: 548IU, Calcium: 60mg, Iron: 4mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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70 Comments

  1. Candace says:

    I just used your recipe and they came out phonomenal! My tummy thanks you 🙂

  2. Michelle says:

    Just wanted to let you know that I was looking for a “S’mores Brownie” recipe online and this recipe is by far the best I have seen. I’m sure it’s about the same as many others I have seen, but just the way you talk about the brownies, and show all the pictures make me want to make them. And then eat them all. By myself. Job well done!

  3. Andrea@From the Bookshelf says:

    These look fantastic!

  4. Daniela says:

    Can you serve this cold?

    1. Lori Lange says:

      I don’t see why not! Chilled might be easier to cut.

  5. Daniela says:

    These look delicious! Going to try them this weekend 🙂 Thanks for sharing. I love your website!

  6. Avanika says:

    My oh my! I’d be hard pressed to justify this one! But I’m still going to do it!! Bookmarked and stumbled 🙂

  7. Lamb says:

    I’m still here and, yep, I just bookmarked another one 🙂

  8. Erin says:

    Tasted great. However, that was after scraping off the ash that developed after the marshmallows started on fire. Next time, I think I’ll just try a lighter.

    1. Lori Lange says:

      @Erin, Yikes! A little too close to the heat source, eh? You must watch very closely… there’s a fine line between lightly toasted and burned. It happens quickly!

  9. Robyn | Add a Pinch says:

    Gorgeous photos and these brownies look to.die.for!

  10. Sweet Pea's Kitchen says:

    Oh yeah! These brownies look incredible! I love smores…these would just be dangerous in my house! 🙂