Introduction & Inspiration: Campfire Bliss in Layer Cake Form!
This S’mores Chocolate Cake is the ultimate tribute to everyone’s favorite campfire treat, transformed into a stunning and decadent layer cake! I am absolutely obsessed with how perfectly it captures the essence of S’mores – the rich chocolate, the gooey, toasted marshmallow, and the essential graham cracker crunch. It’s pure, unadulterated fun and deliciousness.
The inspiration came directly from wanting to recreate that magical S’mores experience in a more sophisticated, shareable format. This isn’t just a S’mores flavored cake; it incorporates all the key elements: moist chocolate cake, a unique toasted marshmallow frosting, crunchy graham cracker bits, rich chocolate ganache, and even torched marshmallows on top!
Making this cake is definitely a multi-step project, but I find each component – baking the cake, making the crunchies, whipping the special frosting, creating the ganache – incredibly satisfying. The assembly brings it all together into a truly spectacular dessert.
Perfect for birthdays, celebrations, or anytime you want to bring the fun of a campfire indoors with an impressive, crowd-pleasing cake, this S’mores Layer Cake is an absolute showstopper.
Nostalgic Appeal (Gooey Campfire Memories)
S’mores are pure nostalgia, aren’t they? They instantly transport me back to childhood campfires, sticky fingers, slightly charred marshmallows, and the simple joy of squishing chocolate and marshmallow between two graham crackers. This cake is designed to evoke those exact happy memories.
It takes the three core components of a S’more and interprets them into cake layers. The deep chocolate cake represents the melted chocolate bar. The special frosting, made with both marshmallow fluff and actual toasted marshmallows, captures that gooey, sweet, slightly smoky flavor. And the baked graham cracker crunchies provide that essential textural element.
Even the final decoration, with torched mini marshmallows on top, directly references the campfire experience. It’s a playful yet sophisticated homage to a universally loved treat.
Making and eating this cake feels like indulging in a grown-up version of a cherished childhood favorite. It’s comforting, fun, and undeniably delicious.
Homemade Focus (Building the S’mores Experience Layer by Layer)
While inspired by a simple treat, creating this S’mores Cake from scratch is a rewarding homemade endeavor that focuses on building distinct textures and flavors. Each component is crafted individually before being layered into the final masterpiece.
The homemade focus shines in creating the Graham Cracker Crunchies – baking the buttery, sugary crumbs ensures they stay crisp and flavorful, far superior to just sprinkling plain crumbs. The star is the Toasted Marshmallow Frosting: this isn’t just marshmallow flavored; it incorporates actual toasted marshmallows for authentic flavor and a unique, slightly chewy texture alongside the fluffy marshmallow fluff base.
Making the rich chocolate ganache and the moist chocolate cake from scratch allows for deep flavor development. And the careful assembly, including piping a buttercream dam to contain the layers, applying a crumb coat, and achieving a smooth finish before the final decorations, showcases homemade care.
This recipe celebrates the process of building a complex, themed dessert from individual homemade elements. It’s a testament to how scratch baking can transform a simple concept into something truly extraordinary.
Flavor Goal: Chocolate, Toasted Marshmallow, Graham Cracker Harmony
The ultimate flavor and texture goal is to perfectly replicate the S’mores experience in every bite. We need moist, rich chocolate cake providing the foundation; a sweet, fluffy, slightly chewy frosting bursting with authentic toasted marshmallow flavor (from both fluff and actual toasted marshmallows); distinct layers of rich chocolate ganache; and pockets of buttery, crunchy graham cracker crunchies.
The balance is key. The chocolate elements (cake, ganache) should be rich but not overly bitter. The marshmallow frosting needs to be sweet and distinctly marshmallowy, with that crucial toasted note. The graham cracker crunchies must provide noticeable texture and buttery, honey-graham flavor.
Each component needs to shine, yet work together harmoniously. A forkful should deliver moist cake, smooth ganache, fluffy marshmallow frosting, and satisfying graham cracker crunch simultaneously – just like biting into a perfectly made S’more.
Ingredient Insights: Deconstructing the S’more Components
Let’s break down the ingredients needed to build this campfire classic cake:
For the Chocolate Cake:
- Standard moist chocolate cake ingredients: Flour, Sugar, Cocoa, Baking Soda/Powder, Salt, Eggs, Milk (Self-correction: Recipe uses Buttermilk), Corrected: Buttermilk, Vegetable Oil, Vanilla, Hot Water/Coffee. This reliable base ensures a moist, tender crumb to carry the other components.
For the Graham Cracker Crunchies:
- Graham Cracker Crumbs: The essential graham flavor base.
- Sugar: Adds sweetness and helps the crumbs crisp up during baking.
- Melted Unsalted Butter: Binds the crumbs and adds rich, buttery flavor. Baking creates a crunchy, almost candy-like texture.
For the Toasted Marshmallow Frosting:
- Unsalted Butter (Room Temp): Base for the American-style buttercream.
- Marshmallow Fluff: Provides instant marshmallow flavor, sweetness, and a smooth, sticky, fluffy base texture.
- Powdered Sugar (Sifted): Sweetness and structure.
- Mini Marshmallows (Toasted): The key for authentic toasted flavor! Broiled until golden, cooled, then folded into the frosting for flavor bursts and chewy texture.
For the Chocolate Ganache:
- Semi-Sweet Chocolate Chips: Provide rich chocolate flavor for both filling layers and the final drip.
- Heavy Whipping Cream: Creates the smooth ganache emulsion when heated and combined with chocolate.
For the Vanilla Buttercream Dam:
- Unsalted Butter (Room Temp), Powdered Sugar (Sifted), Vanilla, Milk/Cream: A small batch of simple vanilla buttercream used solely to create a sturdy dam to hold the ganache and marshmallow frosting layers neatly in place.
Garnish:
- Extra Mini Marshmallows (toasted with torch), Walnuts (Self-correction: Walnuts not listed in S’mores ingredients, likely leftover from previous recipe thought), reserved Graham Cracker Crunchies, extra Ganache drizzle.
Essential Equipment: Tools for Layers, Toasting, and Torching!
This multi-component cake requires a well-equipped kitchen:
- Three 8-inch Round Cake Pans: For the cake layers.
- Parchment Paper & Non-stick Spray.
- Stand Mixer (Highly Recommended): Essential for making fluffy buttercream and incorporating sticky marshmallow fluff/toasted marshmallows.
- Large & Medium Mixing Bowls.
- Cookie Sheet: For baking the graham cracker crunchies.
- Oven Broiler: Needed for toasting the mini marshmallows for the frosting. Watch carefully!
- Heatproof Bowl & Microwave/Small Saucepan: For making the ganache.
- Whisk, Rubber Spatula, Offset Spatula, Bench Scraper.
- Large Serrated Knife: For leveling cakes.
- Cake Turntable (Highly Recommended).
- Piping Bags & Tips: One for the vanilla buttercream dam (medium round tip), one for the optional ganache drip (small round tip or snipped bag), potentially one for decorating with leftover marshmallow frosting.
- Kitchen Torch (Optional but Recommended): For toasting the final marshmallow garnish for the authentic S’mores look and flavor.
List of Ingredients with Measurements (Ready for S’mores Assembly!)
Here is your checklist for this ultimate S’mores cake:
Chocolate Cake:
- 2 cups (260g) all-purpose flour (Self-correction: Recipe implies AP, though cake flour mentioned elsewhere)
- Corrected: 2 cups (260g) all-purpose flour
- 2 cups (414g) granulated sugar
- ¾ cup (85g) natural unsweetened cocoa powder
- 2 tsp baking soda
- 1 tsp salt
- (Self-correction: Baking powder missing from list but in directions)
- Added: 1 tsp baking powder
- 2 large eggs, room temperature
- 1 cup (240ml) milk (Self-correction: Recipe uses Buttermilk)
- Corrected: 1 cup (240ml) buttermilk, room temperature
- 1 cup (240ml) vegetable oil (Self-correction: Recipe uses 2/3 cup)
- Corrected: ⅔ cup (158ml) vegetable oil
- 1 ½ tsp vanilla extract
- 1 cup (240ml) hot water or hot coffee
Graham Cracker Crunchies:
- ¾ cups (100g) graham cracker crumbs (about 6 full sheets)
- 1 ½ tbsp (20g) sugar
- ¼ cup (56g / ½ stick) unsalted butter, melted
Toasted Marshmallow Frosting:
- 1 ¾ cups (392g / 3.5 sticks) unsalted butter, room temperature
- 3 ¼ cups marshmallow fluff* (approx. one 7-oz jar + a bit more)
- 6 cups (690g) powdered sugar, sifted
- 1 ½ cups mini marshmallows
Chocolate Ganache:
- 9 oz (1 ½ cups / 255g) semi-sweet chocolate chips
- ¾ cup (180ml) heavy whipping cream
Vanilla Buttercream (for Dam):
- ¾ cup (168g / 1.5 sticks) unsalted butter, room temperature
- 3 cups (345g) powdered sugar, sifted
- 1 tsp vanilla extract
- 1 tbsp milk or cream
Garnish:
- Reserved Graham Cracker Crunchies
- Reserved Ganache
- Extra Mini Marshmallows
- Kitchen Torch
(Note: Some ingredient quantities seem adjusted from standard recipes based on instructions/other components. Ensure butter/eggs/buttermilk are room temp!)
Step-by-Step Instructions: Building Your S’mores Masterpiece
Let’s assemble this incredible S’mores Chocolate Cake layer by delicious layer:
1. Make the Chocolate Cake Layers:
Prepare three 8-inch round cake pans (grease, parchment bottom, grease/flour). Preheat oven to 350°F (175°C) – Self-correction: Recipe says 300°F. Following recipe. Preheat oven to 300°F (148°C).
Whisk dry ingredients (flour, sugars, cocoa, soda, powder, salt) in a large mixer bowl.
Whisk wet ingredients (eggs, milk/buttermilk, oil, vanilla) in a separate bowl.
Add wet to dry, mix until combined. Slowly mix in hot water/coffee until smooth (thin batter).
Divide evenly between pans. Bake 30-35 mins until toothpick has moist crumbs. Cool 10 mins in pans, then fully on wire racks.
2. Make Graham Cracker Crunchies:
While cakes cool (or after), preheat oven to 350°F (175°C). Line a cookie sheet with parchment.
Combine graham cracker crumbs, sugar, and melted butter. Spread evenly on prepared sheet.
Bake 8-10 minutes until lightly toasted. Cool completely, then break into small, crumbly pieces. Set aside.
3. Make Toasted Marshmallow Frosting:
Spread 1 ½ cups mini marshmallows on a foil-lined baking sheet. Broil on HIGH for about 1 minute, watching constantly, until lightly toasted and puffed. Remove immediately and let cool completely.
In a large mixer bowl (paddle attachment), beat room temperature butter until smooth.
Add marshmallow fluff and beat until well combined.
Gradually add sifted powdered sugar, mixing on low then medium until smooth and combined.
Gently fold or mix in the cooled, toasted marshmallows (break apart sticky clumps first). Set aside.
4. Make Chocolate Ganache:
Place chocolate chips in a medium heatproof bowl.
Heat heavy cream in saucepan or microwave until just boiling/simmering. Pour hot cream over chips.
Let sit 3-5 minutes. Whisk gently until completely smooth and glossy. Let cool until thickened but still pourable/spreadable (room temp or slightly warmer).
5. Make Vanilla Buttercream Dam:
Beat softened butter until smooth. Gradually add sifted powdered sugar. Beat in vanilla and milk/cream until light and fluffy. Transfer to a piping bag with a medium round tip (or just a snipped corner).
6. Assemble the Cake:
Level the cooled cake layers if needed. Place the first layer on a cake plate/board.
Pipe a dam (ring) of vanilla buttercream around the top outer edge of the cake layer.
Spread about 6 tablespoons of chocolate ganache evenly inside the buttercream dam.
Top the ganache with about 1 cup of the toasted marshmallow frosting, spreading it evenly within the dam.
Sprinkle ½ cup of the prepared graham cracker crunchies over the marshmallow frosting.
Place the second cake layer on top. Repeat the process: pipe vanilla dam, spread 6 tbsp ganache, spread 1 cup marshmallow frosting, sprinkle ½ cup crunchies.
Place the final cake layer on top (upside down for flat surface).
Apply a thin crumb coat of the toasted marshmallow frosting over the entire cake. Chill for about 30 minutes until firm.
7. Final Frosting & Decoration:
Frost the top and sides of the chilled cake smoothly with the remaining toasted marshmallow frosting.
Gently press the remaining graham cracker crunchies onto the bottom 1-2 inches of the cake sides.
Re-warm the remaining chocolate ganache slightly if needed to make it fluid for dripping. Apply the ganache drip around the top edge of the cold cake. Flood the top center with ganache and smooth. Let set briefly.
Place extra mini marshmallows on top of the ganache. Use a kitchen torch to lightly toast the marshmallows.
Drizzle lightly with any remaining ganache or caramel sauce (optional). Add extra walnut pieces if desired (Self-correction: Walnuts not listed, ignore).
8. Chill and Serve:
Refrigerate the cake until ready to serve (at least 30 mins for ganache to fully set).
Serve cool, but let sit out briefly from fridge for best texture. Store leftovers covered in the refrigerator.
Troubleshooting: Navigating Sticky Marshmallows & Ganache
This cake has unique components that need care:
Problem: Toasted Marshmallows Melt into Frosting
Cause: Marshmallows added while still warm; frosting too warm. Solution: Ensure toasted marshmallows are completely cool before folding into room temp frosting. If frosting seems warm, chill briefly before adding marshmallows.
Problem: Marshmallow Frosting is Excessively Sticky/Hard to Spread
Cause: Nature of marshmallow fluff; powdered sugar ratio. Solution: This frosting will be stickier than standard buttercream. Work with slightly chilled spatulas if needed. Ensure enough powdered sugar was used for structure. Don’t overwhip after adding marshmallows.
Problem: Ganache Drip Too Thick/Thin/Seized
Solution: Adjust consistency carefully with tiny amounts of warm cream (thin) or more chocolate (thicken) off heat. Ensure ganache is slightly warm but not hot for dripping on a cold cake. Keep water away to prevent seizing.
Problem: Graham Crunchies Get Soggy Quickly Solution: Bake them until fully crisp. Apply them just before the final chill or serving if possible, or accept some softening within the layers is normal.
Tips and Variations: More Campfire Fun!
Customize your S’mores experience:
- Toasting Marshmallows: Watch the broiler like a hawk! They go from golden to burnt in seconds. Alternatively, use a kitchen torch on marshmallows spread on foil before cooling and adding.
- Graham Crunchies: Make these a day ahead and store airtight at room temp.
- Frosting: If marshmallow frosting is too tricky, use a chocolate or vanilla buttercream and incorporate the fluff/toasted marshmallows just between layers.
- Nuts: Add toasted chopped pecans or walnuts along with the graham crunchies between layers for extra texture.
- Different Chocolate: Use milk chocolate ganache for a sweeter profile closer to classic S’mores.
- Shortcut: Use store-bought marshmallow fluff and skip toasting marshmallows for the frosting (flavor will be less complex). Use store-bought chocolate cake layers.
Serving and Pairing Suggestions: Gather ‘Round the Cake!
This cake is a party centerpiece:
Serving Suggestions:
- Serve at cool room temperature for the best blend of textures. Let sit out from fridge 20-30 mins.
- Slice with a large, sharp knife dipped in hot water and wiped clean.
- Perfect for birthdays, themed parties (camping!), bonfires (serve before the real s’mores!), or any celebration needing a fun, indulgent dessert.
Pairing Suggestions:
- Beverages: Cold milk is essential! Also great with coffee, hot chocolate, or even a stout beer for adults.
- Keep it Simple: This cake provides all the flavor and texture you need!
Nutritional Information (Approximate, as of April 3, 2025)
The original prompt did not provide Nutrition Facts. Based on the very rich ingredients (cake with oil/sugar/eggs, multiple frostings with butter/sugar/fluff/marshmallows, ganache with chocolate/cream, cookies), this is an extremely decadent, high-calorie, high-fat, high-sugar dessert. A rough estimate per slice (assuming 12-16 slices) could easily be:
- Calories: 800 – 1100+
- Fat: Very high (45-65g+), significant saturated fat.
- Carbohydrates: Very high (90-120g+).
- Sugars: Extremely high.
- Protein: Moderate (7-10g).
This is definitely a special occasion, share-generously kind of cake!
Print
Smores Chocolate Cake
Description
This S’mores Chocolate Cake is the ultimate tribute to everyone’s favorite campfire treat, transformed into a stunning and decadent layer cake! I am absolutely obsessed with how perfectly it captures the essence of S’mores – the rich chocolate, the gooey, toasted marshmallow, and the essential graham cracker crunch. It’s pure, unadulterated fun and deliciousness
Ingredients
Chocolate Cake:
- 2 cups (260g) all-purpose flour (Self-correction: Recipe implies AP, though cake flour mentioned elsewhere)
- Corrected: 2 cups (260g) all-purpose flour
- 2 cups (414g) granulated sugar
- ¾ cup (85g) natural unsweetened cocoa powder
- 2 tsp baking soda
- 1 tsp salt
- (Self-correction: Baking powder missing from list but in directions)
- Added: 1 tsp baking powder
- 2 large eggs, room temperature
- 1 cup (240ml) milk (Self-correction: Recipe uses Buttermilk)
- Corrected: 1 cup (240ml) buttermilk, room temperature
- 1 cup (240ml) vegetable oil (Self-correction: Recipe uses 2/3 cup)
- Corrected: ⅔ cup (158ml) vegetable oil
- 1 ½ tsp vanilla extract
- 1 cup (240ml) hot water or hot coffee
Graham Cracker Crunchies:
- ¾ cups (100g) graham cracker crumbs (about 6 full sheets)
- 1 ½ tbsp (20g) sugar
- ¼ cup (56g / ½ stick) unsalted butter, melted
Toasted Marshmallow Frosting:
- 1 ¾ cups (392g / 3.5 sticks) unsalted butter, room temperature
- 3 ¼ cups marshmallow fluff* (approx. one 7-oz jar + a bit more)
- 6 cups (690g) powdered sugar, sifted
- 1 ½ cups mini marshmallows
Chocolate Ganache:
- 9 oz (1 ½ cups / 255g) semi-sweet chocolate chips
- ¾ cup (180ml) heavy whipping cream
Vanilla Buttercream (for Dam):
- ¾ cup (168g / 1.5 sticks) unsalted butter, room temperature
- 3 cups (345g) powdered sugar, sifted
- 1 tsp vanilla extract
- 1 tbsp milk or cream
Garnish:
- Reserved Graham Cracker Crunchies
- Reserved Ganache
- Extra Mini Marshmallows
- Kitchen Torch
Instructions
1. Make the Chocolate Cake Layers:
Prepare three 8-inch round cake pans (grease, parchment bottom, grease/flour). Preheat oven to 350°F (175°C) – Self-correction: Recipe says 300°F. Following recipe. Preheat oven to 300°F (148°C).
Whisk dry ingredients (flour, sugars, cocoa, soda, powder, salt) in a large mixer bowl.
Whisk wet ingredients (eggs, milk/buttermilk, oil, vanilla) in a separate bowl.
Add wet to dry, mix until combined. Slowly mix in hot water/coffee until smooth (thin batter).
Divide evenly between pans. Bake 30-35 mins until toothpick has moist crumbs. Cool 10 mins in pans, then fully on wire racks.
2. Make Graham Cracker Crunchies:
While cakes cool (or after), preheat oven to 350°F (175°C). Line a cookie sheet with parchment.
Combine graham cracker crumbs, sugar, and melted butter. Spread evenly on prepared sheet.
Bake 8-10 minutes until lightly toasted. Cool completely, then break into small, crumbly pieces. Set aside.
3. Make Toasted Marshmallow Frosting:
Spread 1 ½ cups mini marshmallows on a foil-lined baking sheet. Broil on HIGH for about 1 minute, watching constantly, until lightly toasted and puffed. Remove immediately and let cool completely.
In a large mixer bowl (paddle attachment), beat room temperature butter until smooth.
Add marshmallow fluff and beat until well combined.
Gradually add sifted powdered sugar, mixing on low then medium until smooth and combined.
Gently fold or mix in the cooled, toasted marshmallows (break apart sticky clumps first). Set aside.
4. Make Chocolate Ganache:
Place chocolate chips in a medium heatproof bowl.
Heat heavy cream in saucepan or microwave until just boiling/simmering. Pour hot cream over chips.
Let sit 3-5 minutes. Whisk gently until completely smooth and glossy. Let cool until thickened but still pourable/spreadable (room temp or slightly warmer).
5. Make Vanilla Buttercream Dam:
Beat softened butter until smooth. Gradually add sifted powdered sugar. Beat in vanilla and milk/cream until light and fluffy. Transfer to a piping bag with a medium round tip (or just a snipped corner).
6. Assemble the Cake:
Level the cooled cake layers if needed. Place the first layer on a cake plate/board.
Pipe a dam (ring) of vanilla buttercream around the top outer edge of the cake layer.
Spread about 6 tablespoons of chocolate ganache evenly inside the buttercream dam.
Top the ganache with about 1 cup of the toasted marshmallow frosting, spreading it evenly within the dam.
Sprinkle ½ cup of the prepared graham cracker crunchies over the marshmallow frosting.
Place the second cake layer on top. Repeat the process: pipe vanilla dam, spread 6 tbsp ganache, spread 1 cup marshmallow frosting, sprinkle ½ cup crunchies.
Place the final cake layer on top (upside down for flat surface).
Apply a thin crumb coat of the toasted marshmallow frosting over the entire cake. Chill for about 30 minutes until firm.
7. Final Frosting & Decoration:
Frost the top and sides of the chilled cake smoothly with the remaining toasted marshmallow frosting.
Gently press the remaining graham cracker crunchies onto the bottom 1-2 inches of the cake sides.
Re-warm the remaining chocolate ganache slightly if needed to make it fluid for dripping. Apply the ganache drip around the top edge of the cold cake. Flood the top center with ganache and smooth. Let set briefly.
Place extra mini marshmallows on top of the ganache. Use a kitchen torch to lightly toast the marshmallows.
Drizzle lightly with any remaining ganache or caramel sauce (optional). Add extra walnut pieces if desired (Self-correction: Walnuts not listed, ignore).
8. Chill and Serve:
Refrigerate the cake until ready to serve (at least 30 mins for ganache to fully set).
Serve cool, but let sit out briefly from fridge for best texture. Store leftovers covered in the refrigerator.
Recipe Summary and Q&A: Your Ultimate S’mores Cake Guide
Let’s recap this incredible S’mores Chocolate Cake!
Summary: This multi-layered cake aims to replicate the S’mores experience. It features moist chocolate cake layers, filled with chocolate ganache, a unique toasted marshmallow buttercream (containing fluff and actual toasted marshmallows), and baked graham cracker crunchies, all held together by a vanilla buttercream dam. The cake is frosted with the marshmallow buttercream, garnished with more crunchies, drizzled with ganache, and topped with torched marshmallows.
Q&A:
Q: Why toast the marshmallows before adding them to the frosting?
A: Toasting develops that characteristic caramelized, slightly smoky flavor crucial to the S’mores experience. Folding cooled toasted marshmallows into the frosting adds pockets of this authentic flavor and a slightly chewy texture, distinct from just using marshmallow fluff alone.
Q: What is the purpose of the vanilla buttercream dam?
A: The small amount of plain vanilla buttercream piped around the edge of each layer acts as a sturdy barrier. It helps contain the softer ganache and marshmallow frosting layers, preventing them from squishing out the sides during assembly and creating neater layers.
Q: Can I make this cake without a kitchen torch for the top?
A: Yes. You can briefly toast the mini marshmallow topping under the oven broiler (watch very carefully!) before adding the final ganache drizzle or other decorations. Or, simply use untoasted mini marshmallows – it will still taste delicious!
Q: How should I store this cake? A: Due to the buttercream and ganache, store leftovers tightly covered in the refrigerator for up to 3-4 days. Let slices come towards room temperature before serving for the best texture