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This S’mores Brownies recipe makes fudgy brownies topped with toasted marshmallows, graham crackers and chocolate bars. A delicious dessert you can make in one bowl. The whole family loves these homemade brownies!

smores brownies topped with toasted marshmallows, graham cracker pieces and melted chocolate bar

So, what do you do when you’re craving some serious ooey, gooey, chocolaty comfort food for? You whip up a big ol’ batch of fudgy brownies topped with toasted marshmallows, graham cracker pieces and a chocolate bar!

These super delicious s’mores brownies are incredibly easy to make in just one bowl. So clean-up is easy, too!

In fact, this easy brownie recipe is so simple that my youngest daughter usually bakes them all by herself! Luckily, she shares them with us!

If you love s’mores as much as we do, try my S’mores Dip, Baked S’mores or No Churn Chocolate S’mores Ice Cream.

mini marshmallows, glour, graham crackers, butter, chocolate chips, vanilla, Hersey bars, sugar, eggs cinnamon


You need a few simple ingredients for these homemade s’mores brownies. What you don’t already have at in your pantry can be found online or in your local grocery store.

  • Butter
  • Semi sweet chocolate chips
  • Eggs
  • Vanilla extract
  • Granulated sugar
  • All purpose flour
  • Baking soda
  • Ground cinnamon
  • Miniature marshmallows
  • Milk chocolate bar — broken into pieces
  • Graham crackers — broken into small pieces

How to Make S’mores Brownies

We use our favorite Double Chocolate Brownie recipe as the base for this s more brownie recipe.

In a large bowl, melt the chocolate and butter together in the microwave in 30 second intervals. You can also melt the chocolate and butter over the stove.

Once it’s melted, add the eggs and vanilla into the same bowl as the melted butter and chocolate mixture. Stir until thoroughly combined.

When the wet ingredients are well-mixed, add the sugar, cinnamon, flour, and baking soda, and stir. Lastly, stir in the remaining chocolate chips.

stir flour with melted chocolate mixture in mixing bowl

You can bake the brownies in a glass pan greased with nonstick spray. I prefer to use a meta pan lined with parchment paper. Just make sure it is a 9 x 13 pan.

When it’s time to cut the brownies, just lift them out of the pan by the parchment paper. They’re so much easier to cut, and you don’t have to clean a sticky pan!

spread brownie batter in parchment paper baking pan

Cook Time

Preheat oven to 350 degrees f. Bake brownies for 20 minutes, or until a toothpick inserted in the center comes out clean. There may be some melted chocolate on the toothpick, though.

Remove brownies from oven, and spread the mini marshmallows evenly over the top of the brownies. Place brownies back in the oven, and broil until marshmallows are golden brown.

top baked brownies with mini marshmallows

I recommend letting the marshmallows cool slightly. Then, you top them with cut-up chocolate bars and graham cracker pieces. That’s it!

one bowl s'mores brownies with marshmallows and graham crackers in pan

How to Store

Store smores brownies at room temperature in an airtight container or covered with foil or plastic wrap.

These delicious chocolatey brownies should last 3 to 4 days — they never stay that long in my house though!

s'mores brownie on the table


There are a couple ways to customize these easy s’mores brownies to your tastes.

If you don’t want to make homemade brownies, you can use a boxed brownie mix instead. Just follow the instructions on the boxed mix, and then top brownies with marshmallows, graham cracker crumbs, and chocolate pieces after baking.

Instead of crushing up graham crackers, use Golden Grahams cereal.

I love gooey marshmallows, but you can use marshmallow fluff on top of the brownies instead. Spread the fluff all over the brownies, and broil until golden brown.

I use milk chocolate Hershey bars like you would in traditional s’mores, but you can choose your favorite chocolate squares for these brownie bars. Or, use semi-sweet chocolate morsels or milk chocolate chips.

How to Slice

You’ll want to dig right into these gooey fudgy brownies right away. But, if you want nice, clean cuts, you’ll need to let them cool slightly.

The marshmallows are super sticky and messy. As the brownies cool down, it’s a lot easier to handle them.

Pro tip: use a plastic knife. After brownies have cooled slightly, use. aplastic knife to cut them instead of a metal one. Brownie crumbs will not stick to the plastic.

one bowl s'mores brownies gooey marshmallows
5 from 12 votes

The BEST S’mores Brownies

By: Dee
This S'mores Brownies recipe makes fudgy brownies topped with toasted marshmallows, graham crackers and chocolate bars. A delicious dessert you can make in one bowl. The whole family loves these homemade brownies!
Prep Time: 10 minutes
Cook Time: 20 minutes
Total Time: 30 minutes
Servings: 16


  • ½ cup butter
  • 2 cups semi sweet chocolate chips divided
  • 3 eggs
  • 1 tablespoon vanilla extract
  • 1 cup granulated sugar
  • 1 ¼ cup all purpose flour
  • ¼ teaspoon baking soda
  • 1 teaspoon ground cinnamon
  • 1 10-oz bag of miniature marshmallows
  • ¼ cup broken milk chocolate pieces
  • 8 graham crackers broken into small pieces
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  • Preheat oven to 350 degrees f
  • In a large microwaveable mixing bowl, combine butter and 1 cup of chocolate chips, and melt in short increments in microwave. Allow to cool slightly
  • Stir in the vanilla and eggs, one at a time
  • Add the sugar, flour, baking soda and cinnamon, and stir until combined
  • Stir in second cup of chocolate chips
  • Pour mixture into greased 9X13 baking pan, or use parchment paper to line pan and make it easier to remove brownies, and bake for 20 minutes, or until toothpick inserted in center comes out clean (melted chocolate may be on toothpick)
  • Remove from heat, spread marshmallows evenly over brownies, and return to oven and broil for additional minute or 2 until until marshmallows are golden brown
  • Remove from oven, allow to cool slightly, and top with graham cracker pieces and chocolate candy
  • Allow to cool completely before serving


For stovetop version, melt chocolate and butter over medium low heat, stir in vanilla, and proceed with recipe.
Use parchment paper to line the pan to make it easier to remove brownies for slicing.
You can either bake the marshmallow topped brownies to melt them or broil for extra color and texture. 


Calories: 323kcal, Carbohydrates: 39g, Protein: 4g, Fat: 16g, Saturated Fat: 9g, Cholesterol: 47mg, Sodium: 128mg, Potassium: 169mg, Fiber: 2g, Sugar: 23g, Vitamin A: 235IU, Calcium: 29mg, Iron: 2.4mg

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

Additional Info

Course: Dessert
Cuisine: American
Like this? Leave a comment below!

If you love easy brownie recipes, try Peppermint Brownies, Mint Chocolate Chip Brownies and check out my easy desserts recipes archive for more sweet treats!

These delicious s’mores cookie bars combine the flavor of everyone’s favorite campfire treat with a classic chewy brownie texture. I hope you enjoy these fudgy s’mores brownies as much as my family does!

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Recipe Rating


  1. Adriana says:

    These brownies were so heavenly! They were so gooey and rich, and the marshmallow layer took them to a whole new extreme. I will be making them for the rest of the summer! Thanks for the great recipe 🙂5 stars

  2. Shannon says:

    Okay. Am I crazy, or does the recipe say 1/5 t of baking soda? Is that a typo? I’m going to change it to 1/4 t, hoping for the best.

    1. Dee says:

      It should be 1/4 tsp baking soda. I must have hit the wrong key when updating. I just corrected it. So sorry! 🙂