There’s something magical about S’mores Cake . The combination of rich chocolate, toasted marshmallows, and crisp graham crackers instantly brings back memories of cozy nights by the campfire. But what if you could capture all that nostalgia in a luxurious cake? That’s exactly what this S’mores Chocolate Cake does. It’s a beginner-friendly, show-stopping dessert that layers moist chocolate cake with toasted marshmallow frosting, crunchy graham cracker crumbs, and a smooth chocolate ganache. If you’re new to baking, don’t worry—this recipe is easy to follow and will make you feel like a pro in no time.

Why This Smores Cake is Special
Unlike traditional s’mores, which can be messy and require an open flame, this cake transforms the classic treat into an elegant and delicious dessert that can be enjoyed year-round. Here’s what makes it unique:
- Rich, Moist Chocolate Cake: This cake is incredibly soft, thanks to a simple one-bowl method that ensures even beginner bakers get great results.
- Toasted Marshmallow Buttercream: The frosting uses real toasted marshmallows and marshmallow fluff, creating a perfect balance of sweetness and smokiness.
- Crunchy Graham Cracker Layers: Adding a layer of buttery, toasted graham cracker crumbs provides the signature crunch that makes s’mores irresistible.
- Silky Chocolate Ganache: Instead of just layering chocolate, a luscious ganache drizzle adds a glossy, melt-in-your-mouth texture.
This cake not only tastes amazing but also looks stunning, making it the perfect dessert for birthdays, celebrations, or when you just want to impress your friends and family.
Ingredients and Their Roles
Here’s what you’ll need and why each ingredient is essential:
Chocolate Cake:
- Flour – Provides the structure for the cake.
- Sugar – Adds sweetness and helps keep the cake moist.
- Cocoa Powder – Gives the cake its deep, chocolatey flavor.
- Baking Soda & Salt – Helps the cake rise and balances the flavors.
- Eggs – Adds structure and moisture.
- Milk & Oil – Keeps the cake soft and tender.
- Vanilla Extract – Enhances the chocolate flavor.
- Hot Water – Helps to bloom the cocoa powder for a richer taste.
Graham Cracker Crunch:
- Graham Crackers – Adds crunch and the signature s’mores flavor.
- Butter – Helps bind the crumbs together and creates a toasty, buttery taste.
- Sugar – Enhances sweetness and helps with caramelization.
Toasted Marshmallow Frosting:
- Butter – Provides a creamy base for the frosting.
- Marshmallow Fluff & Mini Marshmallows – Creates the fluffy, sweet marshmallow flavor.
- Powdered Sugar – Sweetens and thickens the frosting.
Chocolate Ganache:
- Chocolate Chips – Melts into a smooth, rich ganache.
- Heavy Cream – Creates a silky texture and balances the sweetness.
Optional Vanilla Frosting (for cake stability):
- Butter, Powdered Sugar, Vanilla, and Milk/Cream – Used to create a dam to keep the cake layers stable.
Ingredient Substitutions:
- No Graham Crackers? Use crushed digestive biscuits or vanilla wafer cookies.
- Dairy-Free? Swap milk for almond milk and butter for vegan butter.
- Prefer Dark Chocolate? Use 70% cocoa chocolate chips for a richer ganache.
Step-by-Step Instructions
Step 1: Make the Chocolate Cake
Preheat your oven to 300°F (148°C). Grease three 8-inch cake pans and line them with parchment paper. In a large mixing bowl, whisk together the dry ingredients. Add eggs, milk, and oil, and mix until combined. Stir in vanilla extract and hot water (the batter will be thin). Pour evenly into the pans and bake for 30-33 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs. Let cakes cool completely.
Step 2: Prepare the Graham Cracker Crunch
Preheat your oven to 350°F (175°C). Mix crushed graham crackers with sugar and melted butter. Spread onto a baking sheet and bake for 8-10 minutes until golden brown. Let cool.
Step 3: Make the Toasted Marshmallow Frosting
Spread mini marshmallows on a baking sheet and broil for 1 minute until golden brown. Let cool. In a large bowl, beat butter until smooth. Add marshmallow fluff and mix well. Gradually mix in powdered sugar, then fold in the toasted marshmallows.
Step 4: Make the Chocolate Ganache
Place chocolate chips in a bowl. Heat heavy cream until it just starts to boil, then pour over the chocolate. Let sit for 3-5 minutes, then whisk until smooth.
Step 5: Assemble the Cake
Place the first cake layer on a serving plate. Pipe a ring of vanilla frosting around the edges to create a “dam.” Spread a layer of chocolate ganache inside the dam, followed by marshmallow frosting and graham cracker crumbs. Repeat for the second layer. Place the final cake layer on top and refrigerate for 30 minutes to set.
Step 6: Frost and Decorate
Spread the remaining marshmallow frosting over the cake. Press extra graham cracker crumbs around the bottom. Drizzle the chocolate ganache over the top, allowing it to drip down the sides. Add mini marshmallows on top and toast them with a kitchen torch.
Beginner Tips and Notes
- Cake Batter is Thin? Don’t worry—it’s supposed to be! This helps create a super moist texture.
- Ganache Too Thick? If the chocolate ganache hardens too much, microwave it in 10-second bursts until pourable.
- Marshmallows Burning Too Fast? If using a broiler, keep an eye on them—they toast quickly! For more control, use a kitchen torch.
- Frosting Too Soft? If your frosting becomes too runny, chill it in the fridge for 15 minutes before spreading.
Serving Suggestions
- Best Served With: A glass of milk, hot cocoa, or even a scoop of vanilla ice cream.
- Want Extra Crunch? Sprinkle chopped nuts or crushed chocolate bars between layers.
- Storage Tips: Store in an airtight container in the fridge for up to 4 days. Let sit at room temperature for 15 minutes before serving.
Final Thoughts – Try It and Share Your Experience
This S’mores Cake is the perfect way to bring the flavors of a classic campfire treat into your home. Whether you’re baking for a special occasion or just treating yourself, this recipe is designed to be easy, fun, and incredibly rewarding. If you try it, I’d love to hear how it turned out. Drop a comment below with your experience, any tweaks you made, or if you have any questions—I’m here to help!
FAQ About S’mores Cake
Can I make this cake ahead of time?
Yes! You can bake the chocolate cake layers a day in advance and store them wrapped in plastic wrap at room temperature. The assembled cake can also be refrigerated for up to three days before serving.
What if I don’t have a kitchen torch for toasting the marshmallows?
You can toast the marshmallows under your oven’s broiler. Place them on a baking sheet and broil for 30-60 seconds, watching closely to prevent burning.
Can I use store-bought frosting instead of making my own?
While store-bought frosting is an option, making your own marshmallow buttercream gives the cake its signature flavor and texture. If using store-bought, mix in marshmallow fluff for a closer match.
More Relevant Recipes
- Classic New York Cheesecake
- Irish Whiskey Cake with Whiskey Glaze and Buttercream Filling
- Cheesecake Factory Italian Lemon Cream Cake

S’mores Cake
- Total Time: 2 hours 40 minutes
- Yield: 12–14 slices 1x
- Diet: Vegetarian
Description
This S’mores Chocolate Cake brings the campfire classic indoors with layers of rich, moist chocolate cake, creamy toasted marshmallow frosting, crunchy graham cracker crumbs, and a silky chocolate ganache. Perfect for celebrations or whenever you crave a nostalgic yet decadent dessert.
Ingredients
Chocolate Cake
- 2 cups (260g) flour
- 2 cups (414g) sugar
- ¾ cup (85g) natural unsweetened cocoa powder
- 2 teaspoons baking soda
- 1 teaspoon salt
- 2 large eggs
- 1 cup (240ml) milk
- 1 cup (240ml) vegetable oil
- 1½ teaspoons vanilla extract
- 1 cup (240ml) hot water
Graham Cracker Crunch
- ¾ cup (100g) graham cracker crumbs (about 6 full sheet graham crackers)
- 1½ tablespoons (20g) sugar
- ¼ cup (56g) unsalted butter, melted
Toasted Marshmallow Frosting
- 1¾ cups (392g) unsalted butter, room temperature
- 3¼ cups (about 2 jars) marshmallow fluff
- 6 cups (690g) powdered sugar
- 1½ cups mini marshmallows
Chocolate Ganache
- 9 ounces (1½ cups) semi-sweet chocolate chips
- ¾ cup (180ml) heavy whipping cream
Vanilla Frosting (for Cake Stability)
- ¾ cup (168g) unsalted butter, room temperature
- 3 cups (345g) powdered sugar
- 1 teaspoon vanilla extract
- 1 tablespoon milk or cream
Instructions
- Prepare the cake batter: Preheat the oven to 300°F (148°C) and grease three 8-inch cake pans. Line the bottoms with parchment paper. In a large mixing bowl, whisk together the flour, sugar, cocoa powder, baking soda, and salt. Add the eggs, milk, and vegetable oil, mixing until smooth. Stir in the vanilla extract and hot water until fully combined. The batter will be thin. Divide evenly into prepared pans and bake for 30-33 minutes until a toothpick inserted in the center comes out with a few moist crumbs. Let the cakes cool completely.
- Make the graham cracker crunch: Preheat the oven to 350°F (175°C). In a bowl, combine the graham cracker crumbs, sugar, and melted butter, stirring until evenly coated. Spread the mixture onto a baking sheet and bake for 8-10 minutes until golden and fragrant. Let cool completely.
- Prepare the toasted marshmallow frosting: Spread the mini marshmallows on a baking sheet and broil them in the oven for 30-60 seconds until golden brown. Let them cool completely. In a large bowl, beat the butter until smooth. Add the marshmallow fluff and mix well. Gradually add the powdered sugar, beating until smooth and fluffy. Fold in the cooled toasted marshmallows.
- Make the chocolate ganache: Place the chocolate chips in a heatproof bowl. In a small saucepan, heat the heavy whipping cream until it just starts to boil. Pour the hot cream over the chocolate and let it sit for 3-5 minutes before whisking until smooth. Let it cool slightly.
- Assemble the cake layers: Place the first cake layer on a serving plate. Pipe a ring of vanilla frosting around the edges to create a barrier for the fillings. Spread a layer of chocolate ganache inside the ring, followed by a layer of marshmallow frosting, then sprinkle graham cracker crunch on top. Repeat the process for the second layer. Add the final cake layer on top and refrigerate the cake for at least 30 minutes to firm up before frosting the exterior.
- Frost and decorate the cake: Spread the remaining marshmallow frosting over the entire cake. Press extra graham cracker crumbs along the bottom for texture. Drizzle the remaining chocolate ganache over the top, allowing it to drip down the sides. Garnish with mini marshmallows and toast them with a kitchen torch for the final s’mores effect.
Notes
- If you don’t have a kitchen torch, toast the marshmallows under a broiler for 30-60 seconds, keeping a close eye to prevent burning.
- Refrigerating the cake for 30 minutes before final frosting helps keep the layers stable.
- The cake is best served at room temperature, so let it sit for 15 minutes before slicing if stored in the fridge.
- Leftovers can be stored in an airtight container in the fridge for up to 4 days.
- Prep Time: 2 hours
- Cook Time: 40 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 slice
- Calories: 1193
- Sugar: 133.9g
- Sodium: 412.5mg
- Fat: 61g
- Saturated Fat: 35g
- Unsaturated Fat: 22g
- Trans Fat: 1g
- Carbohydrates: 164.4g
- Fiber: 4g
- Protein: 6.6g
- Cholesterol: 130.1mg