Ultimate S’mores Chocolate Cake (Toasted Marshmallow) 🏕️🍫

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Hi, I’m Raya welcome back to my kitchen! Today we are bringing campfire nostalgia indoors with this Ultimate S’mores Chocolate Cake. Featuring a buttery Graham cracker crust base, fudgy dark chocolate cake layers, and a fluffy toasted marshmallow meringue frosting, this cake is summer comfort food in every bite.

Why You’ll Love This Recipe

• 🔥 Toasted Marshmallow Topping: Torched meringue topping tastes just like real campfire toasted marshmallows.
• 🍪 Graham Cracker Crust: Adds a delicious buttery crunch to the bottom of the rich chocolate cake layers.
• 🍫 Fudgy Cocoa Sponge: Decadent chocolate cake that remains soft and moist for days.
• 🎉 Campfire Nostalgia: Brings outdoor camping memories right to your celebration dessert table.

Key Ingredients for S’mores Chocolate Cake

• Graham Cracker Base: Crushed Graham crackers, sugar, and melted butter.
• Chocolate Cake Batter: Cocoa powder, hot brewed coffee, buttermilk, flour, and oil.
• Marshmallow Frosting: Egg whites, sugar, and vanilla bean paste whipped and torched until golden brown.

Baker’s Note: Adding a splash of hot brewed coffee to your cocoa cake batter intensifies the chocolate flavor without making the cake taste like coffee! Read more chocolate science and baking tips on The Spruce Eats to refine your technique. If you enjoy classic North American sweet traditions, don’t miss my Classic Canadian Butter Tarts for another sweet treat!

How to Make S’mores Chocolate Cake

Step 1: Bake the Graham Base and Cake

Mix crushed Graham crackers, melted butter, and sugar. Press into the bottom of two greased 8-inch cake pans. Bake at 175°C (350°F) for 8 minutes to set the crust.

Step 2: Prepare Chocolate Batter

Whisk flour, cocoa powder, sugar, baking powder, and baking soda in a bowl. Whisk in eggs, buttermilk, oil, and hot brewed coffee until a thin, glossy batter forms. Pour carefully over the baked Graham crusts.

Step 3: Bake Chocolate Layers

Bake at 175°C (350°F) for 28 to 32 minutes until a toothpick inserted into the center comes out clean. Cool completely in pans on wire racks.

Step 4: Whip Marshmallow Meringue

Combine egg whites and sugar in a glass bowl over a pot of simmering water (double boiler). Whisk constantly for 4 minutes until sugar dissolves. Transfer to a stand mixer and beat on high speed for 7 minutes until thick, glossy, stiff peaks form. Add vanilla.

Step 5: Assemble and Torch

Place the first cake layer crust-side down on a cake stand. Spread a generous layer of marshmallow frosting. Top with the second cake layer. Spread remaining marshmallow frosting over the top and sides, making decorative swirls with a spatula. Use a kitchen blowtorch to torch the outside until golden brown.

• Torch Gently: Keep the kitchen torch moving constantly to achieve an even golden brown color without burning the meringue.
• Hot Coffee Shortcut: Ensure the coffee added to the batter is hot; hot liquid blooms the cocoa powder for a deeper dark color and rich taste.
• Double Boiler Method: Heating the egg whites with sugar destroys bacteria and ensures the meringue sets stable without collapsing.

How to Serve S’mores Chocolate Cake

Slice using a sharp serrated knife. Decorate individual plates with extra crushed Graham crackers and chocolate squares for an authentic campfire look.

How to Store S’mores Chocolate Cake

• Room Temperature: Store covered under a cake dome at room temperature for up to 2 days. Do not refrigerate torched meringue as humidity causes it to weep.

Frequently Asked Questions

Can I use marshmallow fluff instead of homemade meringue? Yes! Marshmallow fluff works in a pinch, but homemade Swiss meringue toasts much better and holds its shape longer without melting down the sides.

What if I don’t have a kitchen blowtorch? Place the frosted cake under your oven’s broiler on high for 1 to 2 minutes. Watch it constantly, as meringue browns very quickly!

Can I make this cake in advance? You can bake the chocolate layers a day ahead. However, whip, apply, and torch the marshmallow frosting on the day of serving for best results.