S’mores Cake

A Campfire Classic Turned Cozy Cake

There’s something timeless and heartwarming about s’mores. That first gooey bite of toasted marshmallow, warm chocolate, and crunchy graham cracker takes you right back to childhood—whether it was sitting by the crackling campfire, bundled up on a chilly evening, or just roasting marshmallows over the stove with giggles and sticky fingers. This S’mores Cake captures all the magic of that classic treat and transforms it into a show-stopping dessert, layered with nostalgia and indulgence.

I first made this cake for my daughter’s birthday party one summer, when she begged for “something chocolatey and marshmallow-y—but make it cake.” What followed was a delightful experiment that quickly became a family tradition. Every time I make this S’mores Cake, I’m reminded that dessert isn’t just about sweetness—it’s about connection, stories, and memories shared.

Whether you’re celebrating a birthday, a cozy holiday gathering, or just craving a weekend baking project that’s equal parts comforting and impressive, this cake brings the joy of s’mores straight to your kitchen—no campfire needed.

Why You’ll Love This Recipe:

• All the flavors of a campfire s’more—reimagined in cake form
• Rich chocolate cake layers, fluffy marshmallow frosting, and graham cracker crumble
• Perfect for birthdays, backyard parties, or just a fun baking project
• Make-ahead friendly and freezer-friendly

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INGREDIENTS YOU’LL NEED:

For the chocolate cake:

• 1 ¾ cups all-purpose flour
• ¾ cup unsweetened cocoa powder
• 2 cups granulated sugar
• 2 tsp baking soda
• 1 tsp baking powder
• 1 tsp salt
• 2 large eggs
• 1 cup whole milk
• ½ cup vegetable oil
• 1 cup hot water
• 2 tsp vanilla extract

For the marshmallow frosting:

• 1 cup unsalted butter, softened
• 1 ½ cups powdered sugar
• 1 jar (7 oz) marshmallow creme
• 1 tsp vanilla extract
• Pinch of salt

For the graham cracker layer:

• 1 ½ cups graham cracker crumbs
• 5 tbsp melted butter
• 3 tbsp brown sugar

Optional garnish:

• Mini marshmallows (toasted or plain)
• Chocolate ganache drizzle
• Extra graham cracker pieces

How to Make S’mores Cake

Turning a campfire treat into a dreamy dessert is easier than you think. This S’mores Cake is built with rich layers of chocolate cake, sweet marshmallow frosting, and a buttery graham cracker crumble—each bite more nostalgic than the last.

STEP-BY-STEP INSTRUCTIONS:

Step 1: Prepare the Cake Layers

Preheat your oven to 350°F (175°C). Grease and line three 8-inch round cake pans with parchment paper.

In a large bowl, whisk together flour, cocoa powder, sugar, baking soda, baking powder, and salt. Add in eggs, milk, oil, and vanilla. Beat until smooth. Gradually mix in hot water—don’t worry if the batter is thin, that’s what makes the cake so moist.

Divide the batter evenly between the prepared pans. Bake for 30–35 minutes, or until a toothpick comes out clean. Cool in the pans for 10 minutes, then transfer to a wire rack.

Step 2: Make the Graham Cracker Layer

In a bowl, mix graham cracker crumbs, melted butter, and brown sugar until it resembles wet sand. Press the mixture into a parchment-lined baking dish and bake at 350°F (175°C) for 8–10 minutes. Let it cool and break it into crumbles.

Step 3: Whip the Marshmallow Frosting

In a mixing bowl, beat the butter until fluffy. Add powdered sugar gradually, beating until smooth. Mix in marshmallow creme, vanilla, and a pinch of salt. Beat until light and spreadable.

Step 4: Assemble the Cake

Place the first cake layer on a serving plate. Spread a layer of marshmallow frosting and sprinkle with graham cracker crumbles. Repeat with the second layer. For the top, frost generously and garnish with extra graham crackers, mini marshmallows, and a drizzle of chocolate ganache if you’re feeling fancy.

HELPFUL TIPS:

• For perfectly flat cake layers, use cake strips or level the cakes with a serrated knife before stacking.
• Gently toast the mini marshmallows using a kitchen torch for that authentic campfire touch.
• Chill the cake for 30 minutes before slicing to help the layers set beautifully.
• The graham cracker crumble can be made a day ahead and stored in an airtight container.

DETAILS:

Prep Time: 30 minutes
Cook Time: 35 minutes
Total Time: 1 hour 5 minutes
Yield: 10–12 servings
Category: Dessert
Method: Baking
Cuisine: American
Diet: Vegetarian

NOTES:

• You can substitute store-bought chocolate cake mix in a pinch—just focus on the homemade marshmallow frosting and graham layer.
• For a gluten-free version, use a GF flour blend and gluten-free graham crackers.

NUTRITIONAL INFORMATION:

(Per slice, approx.)

• Calories: 460
• Fat: 22g
• Carbohydrates: 60g
• Sugar: 40g
• Protein: 4g
• Fiber: 2g

FREQUENTLY ASKED QUESTIONS:

Can I make S’mores Cake in advance?
Yes! Bake the cake layers a day ahead and refrigerate. Assemble before serving for best texture.

Can I use marshmallows instead of marshmallow creme?
Marshmallow creme gives a smoother, fluffier frosting. If using marshmallows, melt them down with a bit of butter and let cool before whipping.

Can this cake be frozen?
Absolutely. Wrap unfrosted cake layers in plastic wrap and freeze for up to 2 months. Thaw in the fridge overnight before assembling.

STORAGE INSTRUCTIONS:

• Store the assembled S’mores Cake in the refrigerator for up to 4 days.
• Let the cake come to room temperature before serving for the best texture.
• For longer storage, freeze individual slices wrapped in foil and placed in freezer bags.

Related Recipes:

If you liked this recipe, you’ll definitely enjoy these other indulgent delights:

• The Best Cheesecake
• Low Carb Mango Cheesecake Cups
• Cookies and Cream Cake
• Pistachio Raspberry Cake

CONCLUSION:

This S’mores Cake is everything you love about the classic campfire treat—elevated and reimagined into a stunning layer cake. It’s nostalgic, decadent, and so much fun to make. Whether you’re sharing it with friends or sneaking a slice after the kids are in bed, it’s the kind of dessert that makes memories just by being on the table.