These s'mores brownies are the best dessert mashup for the summer! Layered with a golden graham cracker crust, cookie batter, and brownie batter, and then topped with gooey marshmallows and dark chocolate!
Looking for a perfect party dessert? This easy s'mores brownie recipe was made just for you!
I got the inspiration for this recipe from my birthday cake and rocky road brownies, and obviously was just thinking about how much I love s'mores 😋.
If you are wanting the perfect grown-up version of a classic summer dessert that honestly can be made even in the dead of winter (they're a year-round dessert in my eyes), these s'mores brownies are just waiting for you to make them!
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step by step video
why these are the best s'mores brownies
- A grown-up and elevated mashup of three classic desserts: brownies, blondies, and s'mores!
- The best crowd-pleasing party dessert
- Easy to make from scratch
- Fudgy, chewy, and layered with golden graham crackers, blondie batter, brownie batter, marshmallows, and lots of dark chocolate!
expert baking tips
- Use a kitchen scale: Baking with a scale is faster, easier, and overall much more accurate than cup measurements.
- Baking times may vary: All ovens are different, and your brownies may bake quicker or take longer than the indicated baking time. I recommend always checking on them occasionally and testing for doneness!
- Don't overbake: These brownies are meant to be extra gooey like s'mores would be! The middle will be gooey but not raw when they are done baking.
- Cut once cool: I know it's so hard to wait but they will literally fall apart if you cut them while they're warm! When you're ready, run a sharp knife under hot water and then grease it with nonstick spray, butter, or oil, to help cut through the marshmallows.
ingredient notes
- Marshmallows: I used large marshmallows and then cut them into quarters (because I couldn't find any mini ones) but mini marshmallows work just as well!
- Chocolate: You can use bar chocolate for both the batter and the top of the brownies. I typically use Ghiradelli chocolate.
- Butter: Unsalted butter works best in this recipe!
- Graham crackers: Any brand will work, you will have to break one in half to fit it in the pan.
recipe instructions
Before you start: Preheat your oven to 350 F/180 C. Spray or lightly butter the sides and bottom of an 8x8 baking pan then line it with parchment paper to cover all the sides.
Step 1: Lay the graham cracker sheets on the bottom of the prepared baking pan.
Step 2: Make the blondie batter by whisking together the brown sugar, white sugar, egg, egg yolk, and vanilla extract until light and fluffy. Stream the melted butter into the bowl whisking constantly until combined. Then fold in the all-purpose flour, salt, and baking powder until just combined.
Step 3: Pour half of the batter on top of the graham crackers, using an offset spatula to spread it evenly to fill the pan.
Step 4: Make the brownie batter by whisking together the sugar, egg, and vanilla until light and fluffy. Stream in the melted butter and chocolate, whisking constantly until well combined. Then fold in the all-purpose flour, cocoa powder, and salt until just combined.
Step 5: Pour the brownie batter into the pan, using an offset spatula to spread it to the edges.
Step 6: Evenly spread the rest of the blondie batter into the pan, then bake it for 30-33 minutes. You can test for doneness by inserting a toothpick into the center, it should come out covered in a few moist crumbs.
Step 7: Take the pan out of the oven and add the marshmallows and chopped dark chocolate. Return it to the oven and bake another 2-3 minutes or until the marshmallows look puffy.
storage
- Room temperature: Once cooled, store them in a sealed container or in the pan covered in plastic wrap for 2-3 days.
faq's
Yes! These are best when they have ample time to cool completely before cutting otherwise they can be quite messy.
The best way to cut them is by running a sharp knife under very hot water, then greasing it with butter, oil, or nonstick spray. In between cuts, run the knife under hot water, wipe it clean, and re-oil it for really clean cuts!
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Recipe 📖
Easy S'mores Brownies
Equipment
Ingredients
For the Blondie Batter
- ½ cup unsalted butter melted
- ½ cup + 1 tbsp light brown sugar packed
- ¼ cup granulated sugar
- 1 large egg
- 1 large egg yolk
- 1 teaspoon vanilla extract
- 1 cup + 2 tbsp all-purpose flour
- ¼ teaspoon baking powder
- ½ teaspoon salt
For the Brownie Batter
- 4 tablespoon unsalted butter melted
- ⅓ cup semi-sweet chocolate chips
- ¼ cup + ⅛ cup granulated sugar
- 1 large egg
- 1 teaspoon vanilla extract
- ¼ cup all-purpose flour
- ¼ cup unsweetened dark cocoa powder
- ¼ teaspoon salt
For the S'mores Toppings
- 4 ½ sheets graham crackers
- ½ cup mini marshmallows or large ones cut into quarters
- ¼ cup chopped dark chocolate bar
Instructions
Before you Start
- Preheat the oven to 350 F/180 C and line a square 8x8 baking pan with parchment to line all four sides.4 ½ sheets graham crackers
- Lay the graham cracker sheets in the bottom of the pan. There will be some gaps near the sides of the pan which is okay!
Making the Blondie Batter
- In a large bowl, whisk together the light brown sugar, granulated sugar, egg, egg yolk, and vanilla extract until fluffy, about 1 minute.½ cup + 1 tablespoon light brown sugar, ¼ cup granulated sugar, 1 large egg, 1 large egg yolk, 1 teaspoon vanilla extract
- Stream the melted butter into the bowl while whisking constantly until completely combined.½ cup unsalted butter
- Fold the flour, baking powder and salt into the batter until just combined.1 cup + 2 tablespoon all-purpose flour, ¼ teaspoon baking powder, ½ teaspoon salt
- Spread half of the cookie batter evenly into the baking pan with an offset spatula and set the other half aside.
Making the Brownie Batter
- Melt the butter and chocolate chips together until smooth.4 tablespoon unsalted butter, ⅓ cup semi-sweet chocolate chips
- In another medium bowl, whisk together the sugar, vanilla extract, and egg until fluffy, about 1 minute.¼ cup + ⅛ cup granulated sugar, 1 large egg, 1 teaspoon vanilla extract
- Stream the melted butter and chocolate into the bowl, whisking constantly until completely combined.
- Fold in the flour, cocoa powder, and salt until just combined.¼ cup all-purpose flour, ¼ cup unsweetened dark cocoa powder, ¼ teaspoon salt
- Pour it int the pan and spread it evenly with an offset spatula.
- Spread the other half of the cookie batter on top of the brownie batter.
- Bake them for 30-33 minutes or until a toothpick inserted into the center comes out with just the tip smeared in chocolate.
- Take it out of the oven and top with the marshmallows and chopped chocolate. Return the pan to the oven for 2-3 minutes longer or until the marshmallows are starting to puff up and the chocolate is starting to melt.½ cup mini marshmallows or large ones cut into quarters, ¼ cup chopped dark chocolate bar
- Let the brownies cool completely, then use a sharp knife lightly greased with butter or nonstick spray to keep the marshmallow from sticking to it and enjoy!
Notes
- If you don't have a scale, use a spoon to fluff the flour first, then spoon it into your measuring cup.
recipe notes
- Use a kitchen scale: Baking with a scale is faster, easier, and overall much more accurate than cup measurements.
- Baking times may vary: All ovens are different, and your brownies may bake quicker or take longer than the indicated baking time. I recommend always checking on them occasionally and testing for doneness!
- Don't overbake: These brownies are meant to be extra gooey like s'mores would be! The middle will be gooey but not raw when they are done baking.
- Cut once cool: I know it's so hard to wait but they will literally fall apart if you cut them while they're warm! When you're ready, run a sharp knife under hot water and then grease it with nonstick spray, butter, or oil, to help cut through the marshmallows.
Nutrition
The calorie information provided for the recipe is an estimate. The accuracy of the calories listed is not guaranteed.
Jill P says
These were the absolute best! Rave reviews!! Great instruction and easy to follow!
Cambrea Gordon says
Amazing!! Thank you Jill!
Kathleen says
What a fantastic mash up of desserts. I want to dig into one right now! Yummy!
Tayler says
You had me sold at s’mores! Anything with marshmallow and chocolate and I’m down. Making these this weekend!
Cambrea Gordon says
Yay! Can't wait to hear what you think of them Tayler!