Name: S’mores Bar Recipe
Prep time: 10 min
Cook time: 15 min
Total time: 25 min
Cuisine: American
Ingredients: 2 Cups graham cracker crumbs; 8-12 Tablespoons melted butter; 1/2 Cup powdered sugar; 4 Hershey Chocolate Bars (4.4 ounce bars each); 1 package mini marshmallows

Jump to Recipe· 4.2 from 13 reviews

I am absolutely obsessed with this S’mores Bar Recipe because it perfectly captures the nostalgic campfire treat in an easy-to-make, shareable bar form. The combination of crunchy graham cracker crust, creamy melted chocolate, and gooey toasted marshmallows creates a symphony of flavors and textures that always brings a smile to my face. It’s the kind of dessert that’s simple but feels special whenever I bring it out, whether for a casual get-together or just a cozy night in.

Why You’ll Love This S’mores Bar Recipe

What really excites me about this S’mores Bar Recipe is how effortlessly it balances classic flavors with a texture contrast that just works every time. The graham cracker crust is buttery and slightly crunchy, while the melted Hershey’s chocolate adds that familiar smooth richness. The marshmallows on top get toasted to golden perfection, creating that irresistible toasted sugar flavor. It’s a decadent, gooey finish that perfectly mimics the campfire experience but without the mess or need for a fire pit.

I also love how quick and straightforward this recipe is to prepare. It doesn’t require complicated techniques or fancy equipment; I just mix, press, and bake. It’s the perfect recipe when I’m craving a nostalgic treat that’s impressive but won’t eat up my whole afternoon. Plus, this S’mores Bar Recipe stands out because it’s so versatile—ideal for family parties, last-minute guests, or even as a sweet ending to a weeknight dinner. Honestly, once you try it, you’ll want to make it again and again.

Ingredients You’ll Need

The image shows a clear glass bowl filled with a crumbly, light brown mixture with a wooden spoon inside it scooping up some crumbs, placed on a white marbled surface. Above the bowl, there are three chocolate bars partially unwrapped, showing the segmented chocolate blocks in dark brown. To the left, an empty white bowl with traces of a white substance is visible. To the upper right of the bowl, there is a small wooden measuring scoop with a mix of white and brown powder inside and scattered small white marshmallows. Photo taken with an iphone --ar 4:5 --v 7

These ingredients are simple, classic, and each plays an important role in building the perfect s’mores bar with layers of flavor and texture, from crunchy to melty to toasted.

2 Cups graham cracker crumbs: This forms the crunchy, buttery base that holds everything together.
8-12 Tablespoons butter (melted): Adding richness and helping the crumbs bind into a firm crust.
1/2 Cup powdered sugar: Adds a touch of sweetness and helps with the crust’s texture.
4 Hershey Chocolate Bars (4.4-ounce each): The classic milk chocolate layer that melts into creamy goodness.
1 package mini marshmallows: For that iconic toasted marshmallow topping that brings it all home.

Directions

Step 1: Preheat your oven to 350 degrees Fahrenheit. This gets it ready for baking the perfect crust and melting the chocolate just right.

Step 2: Grease a 9×13-inch baking pan with non-stick butter spray to ensure the bars don’t stick and lift out easily later.

Step 3: In a medium bowl, mix the graham cracker crumbs, powdered sugar, and melted butter together using a spoon until well combined. The butter should evenly coat the crumbs to form a crumbly but sticky mixture.

Step 4: Press the graham cracker mixture evenly and firmly into the bottom and slightly up the sides of the prepared pan. I use my fingers to pack it tightly so it holds together after baking.

Step 5: Bake this crust for approximately 5 to 8 minutes or just until the edges start to turn golden brown. This step is essential to give the crust a little crunch and to help it set firmly.

Step 6: Remove the pan from the oven and let the crust cool completely. It will harden as it cools, so patience here pays off!

Step 7: Once cooled, lay the Hershey chocolate bars evenly over the graham cracker crust, trying to cover as much of the surface as possible for the perfect chocolate layer.

Step 8: Return the pan to the oven for about 3 minutes, just until the chocolate starts to melt and gets shiny. Be careful not to overbake here — you want soft chocolate, not burnt.

Step 9: Let the chocolate cool for 1 to 2 minutes so it’s slightly set but still tacky for the marshmallows to stick.

Step 10: Arrange the mini marshmallows tightly on top of the melted chocolate, packing them as closely as possible to create a fluffy marshmallow layer.

Step 11: Switch your oven to “broil” and carefully place the pan on the upper rack. Watch the marshmallows like a hawk — they’ll only need about 2 minutes to toast and brown on top. Seriously, don’t walk away or they can burn instantly!

Step 12: Remove from the broiler when the marshmallows are golden brown to your liking and let the bars cool completely. I like to pop mine in the fridge after the initial cooling to help them set up and make cutting easier.

Step 13: To slice, use a sharp knife warmed under hot water, dried, and then cut through the bars smoothly. You may need to warm and dry the knife again if it starts getting sticky from the marshmallows.

Servings and Timing

This recipe makes about 16 servings, perfect for sharing at a party or potluck. Prep time is approximately 10 minutes, with a bake and broil time of around 10-12 minutes total. Allow for about 15-20 minutes of cooling and setting time so the bars slice neatly without sticking messily. Altogether, this recipe will take you roughly 25 to 30 minutes from start to finish, making it a wonderfully quick dessert that never disappoints.

How to Serve This S’mores Bar Recipe

A square piece of dessert with three clear layers is being lifted by a metal spatula from a baking tray. The bottom layer is a crumbly golden-brown crust, the middle layer is a smooth white filling, and the top layer consists of many small toasted marshmallows, golden and slightly browned on top. The tray below shows a large section of the dessert with the same toasted marshmallow layer. The whole scene is set on a white marbled surface with a white and black checked cloth partially visible. photo taken with an iphone --ar 4:5 --v 7

I love serving these s’mores bars slightly warm or at room temperature because the marshmallows have just the right gooey softness without being sticky messes. When I bring these to gatherings, I often place them on a festive platter dusted lightly with powdered sugar or cocoa to add a little extra flair. If I’m feeling fancy, I’ll drizzle some melted chocolate or caramel on top before adding the marshmallows for even more indulgence.

For accompaniments, fresh fruit like strawberries or sliced bananas pair surprisingly well and add some brightness against the sweet richness. If I want to turn it into a real dessert experience, a scoop of vanilla ice cream or whipped cream alongside is always a hit. As for drinks, this bars’ nostalgic sweetness goes beautifully with cold milk, a creamy hot chocolate, or even an adult twist like a glass of port or a marshmallow-infused cocktail.

This recipe is perfect for everything from casual weekend treats to holiday parties and campfire-themed events. You can serve it buffet-style, cutting into small squares for easy sharing, or plate individual portions with a sprig of mint for a touch of elegance. Honestly, seeing everyone’s faces light up when they try these bars makes it one of my favorite treats to bring out time and again.

Variations

One of the things I love about this S’mores Bar Recipe is how easy it is to customize. If you’re short on graham crackers or want a slightly different crunch, try substituting with crushed digestive biscuits or even pretzels for a salty twist. For the chocolate, I often experiment with dark or semi-sweet varieties to dial back the sweetness or add some complexity.

If you need a gluten-free version, look for gluten-free graham cracker crumbs or substitute with gluten-free cookie crumbs — this recipe holds up beautifully with those changes. For vegan or dairy-free options, you can find dairy-free butter and chocolate, and swap the marshmallows with vegan marshmallows that don’t contain gelatin. I’ve also tried adding a sprinkle of sea salt or chopped nuts between the layers for a fun texture variation.

When it comes to cooking methods, while I usually broil the marshmallows in the oven, you could also toast them using a kitchen torch for more control and a rustic finish. Some folks even turn this into a no-bake treat by using melted chocolate chips and setting it in the fridge, which I’d recommend if you’re really short on time.

Storage and Reheating

Storing Leftovers

If you happen to have leftovers, store the s’mores bars in an airtight container at room temperature for up to 2 days. Because of the marshmallow topping, I don’t recommend refrigerating unless your kitchen is very warm, as the marshmallows can get sticky or harden unevenly. If you do refrigerate, allow them to come to room temperature before serving to regain the best texture.

Freezing

This S’mores Bar Recipe freezes quite well! Wrap individual bars tightly in plastic wrap, then place in a freezer-safe container or bag. They’ll keep great for up to 3 months. When you’re ready to enjoy, thaw bars overnight in the fridge, then bring to room temperature or warm gently in a low oven to revive the gooeyness.

Reheating

To reheat, gently warm the bars in a 300-degree oven for about 5 minutes — this softens the marshmallows without burning them. Avoid microwaving if you can, as this tends to melt and toughen the marshmallows unevenly. If you do use a microwave, heat in short bursts and watch carefully. Using a warm knife to recut bars after reheating can also help prevent sticking.

FAQs

Can I use a different type of chocolate instead of Hershey’s bars?

Absolutely! While Hershey’s classic milk chocolate is iconic here, you can use dark, semi-sweet, or even flavored chocolate bars like mint or caramel to put your own twist on this s’mores bar. Just make sure the chocolate layer covers the crust evenly for the best melt.

What if I don’t have a broiler? Can I toast the marshmallows another way?

If your oven doesn’t have a broiler setting, you can use a kitchen torch to toast the marshmallows carefully. Alternatively, turn your oven to the highest heat and place the bars on the top rack, watching closely to prevent burning. It’s all about keeping a close eye on that toasty finish!

Is this recipe suitable for kids? Are the toasted marshmallows safe?

This recipe is kid-friendly, but because the marshmallows are broiled, they can get quite hot right out of the oven. I always let the bars cool a bit and sometimes refrigerate before serving to ensure they’re safe for little hands and mouths.

Can I make this recipe gluten-free or vegan?

Yes! For gluten-free, substitute gluten-free graham crackers or cookies for the crust. For a vegan version, use dairy-free butter, vegan chocolate bars, and gelatin-free marshmallows. These swaps still yield a deliciously gooey and satisfying s’mores bar.

How do I cut the bars without the marshmallows sticking to the knife?

This is a great question and a common challenge! I recommend warming a sharp knife blade under hot water, drying it off quickly, then slicing the bars in one smooth motion. Repeat this warming process if the knife starts to stick to the marshmallows while cutting.

Conclusion

Honestly, this S’mores Bar Recipe is one of my all-time favorite desserts because it’s such a fun, easy way to bring the magic of s’mores indoors and onto your table. I hope you’ll try making it soon and share it with your friends and family — nothing beats that first bite of crunchy, melty, toasted goodness that reminds you why s’mores are a timeless classic. Enjoy every gooey, chocolatey moment!