S’Mores Oreo Stuffed Brownies

S’Mores on top of brownies, on top of oreos on top of brownies…these S’Mores Oreo Stuffed Brownies are the best of summer desserts all rolled into one deliciously ooey gooey treat!

These S'Mores Oreo Stuffed Brownies are the best of summer desserts all rolled into one deliciously ooey gooey treat!

*This post has been updated from 2014.

In my 8 years of blogging and creating recipes, this is one of my favorites. These S’Mores Oreo Stuffed Brownies look so rusticly beautiful, they taste absolutely divine, and they are a real crowd pleaser – no one can say “no” to these brownies (And if they do you might want to reconsider the relationship!).

These S'Mores Oreo Stuffed Brownies are the best of summer desserts all rolled into one deliciously ooey gooey treat!

Imagine all of the things that remind you of childhood backyard barbecues and summer vacation all blended together in a fabulous dessert. Sticky S’Mores faces licking the marshmallow and melted chocolate off of their fingers, twisting the tops off of the Oreos so you could lick the yummy creme in the center. And brownies. Oh, the brownies.

These S'Mores Oreo Stuffed Brownies are the best of summer desserts all rolled into one deliciously ooey gooey treat!

Since you’ve likely spent the last few minutes drooling over your keyboard, I’ll bet you’re ready to see how easy these S’Mores Oreo Stuffed Brownies are to make!

Start with a graham cracker base, in a foil lined pan, adding broken pieces to fill all the space. *Pro-tip: I like to use foil or parchment paper with any kind of baked bar like this. Makes it super easy to lift the whole thing out and cut on a cutting board rather than digging around to get out the first few squares!

These S'Mores Oreo Stuffed Brownies are the best of summer desserts all rolled into one deliciously ooey gooey treat!

Next you’ll top with half of the brownie batter then top that with Oreos.

These S'Mores Oreo Stuffed Brownies are the best of summer desserts all rolled into one deliciously ooey gooey treat!

Next you’ll add a cup of marshmallows to the remaining batter and fold them in until they are all covered with chocolate. Then spread that on top of the Oreos. Try to get the brownie batter all the way to the edges of the pan or the Oreos tend to burn.

These S'Mores Oreo Stuffed Brownies are the best of summer desserts all rolled into one deliciously ooey gooey treat!

Then bake that beautiful mess for about 27 minutes, on the middle rack of the oven. Flip on the broiler and sprinkle another cup or so of marshmallows on top of the brownies. Leave them on that center rack and let the broiler brown them for about two minutes. Don’t walk away – they can burn in seconds!

These S'Mores Oreo Stuffed Brownies are the best of summer desserts all rolled into one deliciously ooey gooey treat!

These S'Mores Oreo Stuffed Brownies are the best of summer desserts all rolled into one deliciously ooey gooey treat!

Remove from the oven and allow the brownies to cool completely before cutting into bars. The marshmallow does get sticky so it helps to dip the knife in warm water after each slice.

These S'Mores Oreo Stuffed Brownies are the best of summer desserts all rolled into one deliciously ooey gooey treat!

A few tips:

  • I use a boxed brownie mix. I know that’s not cool for some so feel free to use your favorite recipe. Just make sure that the recipe is for a 13×9″ pan or you won’t have enough. I love THIS RECIPE, but you would need to double it.
  • Marshmallows: I always use Jet-Puffed Marshmallows, never store brand. In my experience the store brand marshmallows tend to stick together in the bag and just don’t taste as good. (aff link)
  • Oreos: I personally again do not use the store brand. However, for these brownies, they would probably be just fine.

If you’re planning to make these at home, be sure to share a photo on Instagram and tag #yellowblissroad!

These S'Mores Oreo Stuffed Brownies are the best of summer desserts all rolled into one deliciously ooey gooey treat!

S’Mores Oreo Brownies:


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A stack of S'mores brownies

S’Mores Oreo Brownies

S'Mores on top of brownies, on top of oreos on top of brownies...these S'Mores Oreo Stuffed Brownies are the best of summer desserts all rolled into one deliciously ooey gooey treat!
Prep Time 15 mins
Cook Time 30 mins
Total Time 45 mins
Course Dessert
Cuisine American
Servings 15 brownies

Ingredients
  

  • 1 box of family size Chocolate Fudge Brownie Mix + ingredients called for on box You could also use your favorite recipe as long as it is enough for a 13x9" pan
  • 8 graham crackers
  • 28 Oreo cookies
  • 1 cup marshmallows for mixing
  • 1 1/2 cups marshmallows for topping

Instructions
 

  • Preheat oven to 350 degrees and place rack in the center of the oven. Line a 13"x9" pan with foil or parchment paper and spray lightly with cooking spray.
  • In a large mixing bowl, prepare brownie mix or recipe according to instructions.
  • Place graham crackers in the bottom of the pan, breaking as needed to fit. Pour half of the brownie batter over the graham crackers and spread very gently with a knife to cover. Place Oreo cookies in a single layer on top of batter.
  • Add one cup of mini marshmallows to the remaining brownie batter and fold in gently. Spread batter gently over Oreos, placing mini marshmallows as evenly as possible.
  • Bake for approximately 27 minutes or until a toothpick inserted in the middle comes out mostly clean.
  • Switch to broiler and sprinkle remaining marshmallows evenly on top of brownies. Place pan back into the center of the oven and leave door cracked open for about two minutes so marshmallows can brown. Watch closely as they can burn quickly!
  • Allow to cool completely before cutting into squares. *Pro-tip: To prevent sticking, run knife under warm water before each slice.
Keyword s'mores brownies

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These S'Mores Oreo Stuffed Brownies are the best of summer desserts all rolled into one deliciously ooey gooey treat!

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Kristin Maxwell

Kristin Maxwell is the creator and main recipe developer, writer, and photographer of Yellow Bliss Road. A self-taught cook and self-appointed foodie, she specializes in easy, flavorful and approachable recipes for any home cook.

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Comments

      1. The foil pan was likely the problem here. It’s thin and probably needed a higher temperature to cook it faster. Always use a glass or nonstick metal pan when baking, especially brownies.

  1. Hi! I just made these brownies and followed every direction but my brownie batter top layer never hardened. Was wondering if it’s still edible. Or do I need to let it sit out longer?

  2. This looks delicious. What if I were to skip the s’mores part and just do brownie batter, Oreos, more brownie batter? And what if the brownie recipe was homemade? Would the usual 40ish minutes be too long? Thanks 🙂

    1. You could just use your favorite brownie recipe and spread half in the pan, add the Oreos, then top with the remaining batter. Cook according to recipe directions.

  3. I have a question about the size of the brownie mix. You say a family size box, is this the 450g size

    Thanks

  4. Just made these for a second time! They’re a really big hit among family and friends! Thank you for sharing your recipe!

  5. Whoa! Now these look delicious! I’m not even sure what I would do with myself after eating one….eh I’d probably go finish the pan 😉

  6. Woah! Now these look delicious! I’m not even sure what I would do with myself after eating one….eh I’d probably go finish the pan 😉

  7. These look AMAZING!! Holy cow! Perfect for summer. Your photography is gorgeous!

  8. Oh goodness Kristin these look amazing!!! I’m definitely going to be baking up some of these VERY soon. Smores, brownies, and oreos just sound so mouthwatering! hahah