If you love everything about classic campfire desserts, these S’mores blondies are about to become your new obsession. They’re soft, chewy, loaded with chocolate chips, and topped with perfectly toasted marshmallows and a drizzle of chocolate sauce. You don’t even need a campfire!

These bars are perfect for parties, summer gatherings, or anytime you’re craving something rich and nostalgic.
If you enjoy easy desserts like this, you’ll also want to check out my other tasty dessert recipes, like these blueberry cheesecake bars or chocolate buttercream brownies.
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Why You’ll Love This Recipe
- Easy to make with simple pantry ingredients
- Soft and chewy with gooey marshmallow topping
- Perfect for dessert, parties, holidays, or bake sales
- No campfire needed for that classic S’Mores flavor
- Ready in under an hour
- Freezer-friendly and great for meal prep
Key Ingredients
You’ll find a full list of ingredients and their exact amounts in the recipe card at the bottom of the post.

- Butter: Provides richness and moisture while helping create a soft, tender texture.
- Brown Sugar & Granulated Sugar: Brown sugar adds chewiness, while granulated sugar adds structure.
- Chocolate Chips: Add bursts of chocolate flavor and richness throughout.
- Marshmallows: Create a gooey, soft topping that adds sweetness and a unique texture contrast.
Variations
- Add Graham Crackers: Add crushed graham crackers to the batter for more texture and S’Mores flavor.
- Change the Marshmallows: Mini marshmallows work just as well as the big ones.
- Swap the Chocolate: Swap out the chocolate chips for chocolate chunks. You can also use white or dark chocolate instead.
- Peanut Butter Drizzle: Add a peanut butter drizzle on top of the blondies for extra richness.
If you think these S’mores blondies sound good, you might enjoy my S’mores marshmallow treats, as well.
How to Make S’mores Blondies

Step 1: Whisk the melted butter and sugar. Then add the eggs and vanilla, whisking until smooth.

Step 2: Gently mix in the flour until just combined. Then, fold in the chocolate chips.

Step 3: Spoon the batter into a prepared 8×8 glass baking dish or a brownie tin, and bake until a toothpick comes out clean.

Step 4: Cool the blondies for a few minutes. Then, transfer them to a wire rack.

Step 5: Cut the marshmallows in half and place one on each blondie, cut-side down.

Step 6: Bake again until the marshmallows are melty. Drizzle with chocolate sauce and enjoy.
Expert Tips
- Don’t Overmix: Mix the batter until just combined to keep the blondies soft.
- Watch the Marshmallows: Keep a close eye on the marshmallows. They brown quickly.
- Cool Before Slicing: Let the blondies cool for a few minutes before slicing to ensure uniform edges and clean cuts.
- Quality Chocolate Makes Quality Blondies: Choose high-quality chocolate chips or chunks for the best flavor.
S’mores Blondies FAQs
Yes! You can bake the blondies in advance and add the marshmallow topping just before serving for the best texture and presentation.
Chocolate chips are convenient, but you can also use chocolate chunks or dark chocolate for a richer flavor.
The edges should be golden and the center set. A toothpick inserted into the center should come out clean or with a few moist crumbs.
Overmixing the batter or overbaking can lead to dry blondies. Mix just until combined and keep a close eye on baking time.
Store them in an airtight container at room temperature for up to 3 days.
Absolutely. Freeze the blondie base without the marshmallow topping. When ready to serve, thaw, add marshmallows, and reheat briefly.
Warm in the microwave for 10–15 seconds to bring back the gooey chocolate and soft texture.

Delicious S’more Blondies Pairings
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S’mores Blondies
Ingredients
- 1 cup packed brown sugar
- ¾ cup granulated sugar
- 2 large eggs
- ¾ cup butter
- 1 tablespoon vanilla extract
- 1¾ cup all purpose flour, sifted
- ¼ teaspoon salt
- ½ cup mini chocolate chips
- 6 large marshmallows, cut in half
Instructions
- Preheat the oven to 350°.
- In a large microwave safe bowl, heat the butter in the microwave until melted.
- Add the brown sugar and granulated sugar to the melted butter and whisk until creamy.
- Add the eggs and the vanilla. Whisk until the mixture becomes smooth.
- Fold in flour and salt. Batter will be slightly lumpy. Do not overmix.
- Gently fold chocolate chips into the mixture.
- Spoon blondie batter into a prepared brownie tin, or an 8×8 glass pan.
- Cook for 20 minutes or until golden on the edges and the center is set. Check for doneness when a toothpick inserted in the center comes out clean.
- Remove from the oven and let cool slightly.
- Turn the oven to 400°.
- Once Blondies are cool enough to remove from the pan, place them on a baking sheet.
- Cut the jumbo marshmallows in half.
- Place a marshmallow on top of each blondie, cut side down.
- Return to the oven until the marshmallows have browned, about 5 minutes.
- Drizzle with chocolate sauce, and serve immediately.
Notes
- Don’t Overmix: Mix the batter until just combined to keep the blondies soft.
- Watch the Marshmallows: Keep a close eye on the marshmallows. They brown quickly.
- Cool Before Slicing: Let the blondies cool for a few minutes before slicing to ensure uniform edges and clean cuts.
- Quality Chocolate Makes Quality Blondies: Choose high-quality chocolate chips or chunks for the best flavor.
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These were sublime. I wish I had more…definitely will be making again. Such a delicious treat and an absolute hit!
I baked these and they were so good. Gooey, sweet, and full of chocolate and marshmallow!
The graham cracker base stayed firm, and the toasted marshmallow on top added a good texture to the chewy blondie.
These are the best of two delicoius worlds, and I love them so much.
These are so good! It’s all the goodness of S’Mores in a bar form. I love it.