Easy S’mores Swirled Brownies

July 20, 2023

These ooey-gooey, slightly chewy S’mores Swirled Brownies are so easy to make! All you need to make them is brownie mix, marshmallow spread, and graham cracker crumbs.

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I hate when I get the urge to bake, but I don’t have any of the ingredients to make what I want.  And by “don’t have any of the ingredients,” I mean a boxed mix.  I try to avoid baking by scratch.  I’m not always the best at it and when the craving strikes, I want my treats fast!  But the first time I made this recipe, I didn’t have boxed brownie mix.  I made them from scratch.

The brownies turned out flat and way too cakey in texture for my liking.  But that total s’mores vibe was there.  It almost didn’t matter that the brownies were kind of a fail.  Being the semi-perfectionist that I am, I knew I had to try making s’mores brownies again.  With boxed brownie mix.

So when I went grocery shopping, I made sure to put a box of brownie mix on my list.  Our go-to is the “triple chocolate chunk” variety, which happens to work really well for these brownies.  The chocolate chunks melt into the brownies giving them an extra gooey texture – just how I like my brownies and just how I like my s’mores!

Easy S’mores Swirled Brownies

These brownies are the perfect mashup of two of my favorite desserts!  They’re really easy to make with an ooey-gooey texture and a delicious s’mores flavor combo!  And all it takes are a few ingredients and 30 minutes to make them.

Let’s start these brownies by preheating the oven to 350 degrees and greasing a 9×9″ baking pan.  Then, we’re going to mix the brownie mix according to package.  Don’t overmix the batter!

Next, spread the brownie batter into the prepared pan.  Add dollops of marshmallow spread on top of the brownie batter.  Follow by spooning graham cracker crumbs on top.

Using a knife or skewer, gently swirl the batter, marshmallow spread, and graham cracker crumbs.

Bake the brownies in the oven for about 30 minutes and allow to cool completely.  Once cool, cut the brownies and serve.

Easy S’mores Swirled Brownies

Easy S’mores Swirled Brownies


  • 1 box Duncan Hines Triple Chocolate Chunk brownie mix (plus 1 egg + 1/3 cup vegetable oil + 1/4 cup water)
  • 1/2 cup marshmallow spread
  • 1/4 cup graham cracker crumbs


  1. Preheat oven to 350 degrees. Prepare an 9x9" pan with non-stick cooking spray.
  2. In a mixing bowl, prepare the brownie mix according to package. Spread the batter into the pan.
  3. Add dollops of marshmallow spread on top of the batter. Follow by spooning graham cracker crumbs on top of the batter.
  4. Use a knife or bamboo skewer to swirl everything around.
  5. Bake the brownies for 28-30 minutes, or until a toothpick comes out clean from the center of the brownies.
  6. Allow the brownies to cool. Then, cut and serve.
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If you really want to turn these s’mores brownies into the ultimate summer dessert, I suggest serving them slightly warm with a scoop of vanilla ice cream on top!  Total summer night treat!

Did you make this Easy S’mores Swirled Brownies recipe? Share it on social media using the hashtag #livinglavidaeats. Don’t forget to tag me @lavidaholoka!



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