Triple Chocolate Cake
If you dream in chocolate, a triple chocolate cake is the ultimate treat. With layers of rich chocolate sponge, dark chocolate buttercream, and a glossy ganache glaze, each bite is pure chocolate bliss. Whether you’re hosting a birthday, marking an anniversary, or satisfying a weeknight craving, this classic cake delivers unforgettable flavor and stunning presentation.
You don’t need advanced baking skills to pull it off—just a little patience, good-quality ingredients, and the simple steps below. Let’s dive into the world of chocolate, layer by delicious layer.

Why Triple Chocolate Cake Stands Out
When it comes to chocolate desserts, this cake sets itself apart. Each component uses chocolate differently—creating distinct textures and flavors in every forkful. The interplay between the moist chocolate cake, the velvet of the frosting, and the silkiness of ganache is what makes this dessert captivating.
What Makes It Unique
- Three Layers of Chocolate: Sponge cake, buttercream, and ganache harmonize for a multisensory experience.
- Decadence Without Overload: Sweet, but not heavy-handed. A touch of buttermilk and dark cocoa balances depth and sweetness.
- Customization Options: Add fruit, swap in different extracts, or adjust toppings to make it your own. Raspberries or orange zest can lend brightness and contrast.
- Make-Ahead Friendly: Each part can be prepared in advance, taking the frenzy out of special-day baking.
Essential Ingredients for the Best Cake
Selecting the right chocolate is crucial. The quality of your cocoa powder and chocolate morsels or bars will dictate your cake’s depth of flavor and overall texture.
Chocolate Sponge:
– All-purpose flour
– Unsweetened cocoa powder (preferably Dutch-processed)
– Baking soda and baking powder (for structure and lift)
– Fine sea salt
– Granulated sugar and light brown sugar
– Large eggs (room temperature)
– Vegetable oil (adds moisture)
– Buttermilk (for tender crumb and slight tang)
– Hot brewed coffee (intensifies chocolate flavor)
– Pure vanilla extract
– Semisweet chocolate, chopped or chips
Chocolate Buttercream:
– Unsalted butter (softened)
– Semisweet or bittersweet chocolate, melted
– Powdered sugar
– Heavy cream (or whole milk)
– Pinch of salt
– Vanilla extract
Chocolate Ganache:
– Heavy cream
– Bittersweet or dark chocolate (chopped)
– Butter (optional, for added sheen)
Optional Garnishes:
– Fresh berries
– Shaved chocolate or curls
– Edible gold leaf
– Sprinkles or toasted nuts
Step-By-Step Guide to Making Triple Chocolate Cake
1. Prepare the Cake Pans
Preheat your oven to 350°F (175°C). Grease three 8-inch round cake pans. Line each base with parchment paper and lightly flour the sides for easy release.
2. Mix the Chocolate Sponge Batter
Sift together flour, cocoa powder, baking soda, baking powder, and salt in a large mixing bowl.
In a separate bowl, whisk granulated sugar, brown sugar, eggs, oil, and vanilla until smooth and creamy. Pour in the buttermilk and whisk again.
For extra chocolate flavor, combine the hot coffee with the chopped semisweet chocolate in a heatproof bowl. Stir until nearly smooth—if needed, microwave for 15 seconds to finish melting.
Add dry ingredients to the wet ingredients in two batches, stirring gently between additions. Fold in the coffee-chocolate mixture until just incorporated. The batter should look glossy and pour easily.
3. Bake and Cool the Cakes
Divide the batter evenly among the prepared pans. Tap gently to remove air bubbles.
Bake for 25–30 minutes, rotating the pans halfway through. Insert a toothpick in the center; if it comes out clean or with moist crumbs (not wet batter), the cakes are ready.
Cool in pans for 10 minutes. Run a thin knife around the edges, then invert onto wire racks. Peel off the parchment and let cool completely. Cool cakes can be wrapped and chilled or frozen for later use.
4. Make the Chocolate Buttercream
Melt the semisweet chocolate and let it cool, but don’t let it harden.
Beat unsalted butter in a stand mixer (or with a handheld beater) until pale and airy, 2–3 minutes. Sift in the powdered sugar, beat until fluffy, and scrape down the bowl.
Add cooled melted chocolate, a pinch of salt, and vanilla extract. Whip on medium-high, drizzling in cream a tablespoon at a time, until the frosting is smooth and spreadable.
5. Assemble and Frost the Cake
If the cake layers are domed, level them with a serrated knife.
Set the first layer on a cake board or stand. Spread a generous scoop of buttercream over the top, pushing to the edges. Stack the second layer, repeat with frosting, and then add the third cake. Cover the sides and top with a thin coat (the “crumb coat”) to seal in stray crumbs.
Chill the cake for 30 minutes, then apply a final, thicker layer of buttercream. Use an offset spatula for clean, swooping patterns.
6. Prepare the Ganache
Chop the dark chocolate and place it in a heatproof bowl. Heat the cream until it just begins to simmer; pour over the chocolate. Let sit 2–3 minutes, then whisk in ever-growing circles until smooth. For extra shine, whisk in a tablespoon of butter.
Cool the ganache slightly until it’s thick but pourable.
7. Finish the Cake with Ganache
With the cake cold from the fridge, pour the ganache over the top. Use an offset spatula to spread to the edges, letting it drip down naturally. For dramatic drips, gently push ganache over the rim in places.
Let the ganache set for 10–15 minutes. If desired, use a piping bag fitted with a star tip to add chocolate buttercream swirls around the border, and finish with berries or chocolate shavings.
Practical Tips for a Perfect Result
Chocolate Selection
Use high-quality chocolate—something you’d eat on its own. Inexpensive chocolate can create a waxy mouthfeel or artificial flavor.
Avoid Overmixing
Too much mixing equals tough cake. Stir only until the flour disappears.
Baking and Storage
Rotate your pans halfway to ensure even baking. Keep an eye on baking time to avoid dry edges or soggy centers.
Once completely cool, cake layers can be frozen for up to three months. This makes last-minute assembly a breeze.
Texture Tweaks
For lighter cake, substitute half the oil with applesauce or add a handful of mini chocolate chips to the batter for extra pockets of flavor.
Flavor Variations
Enhance the depth by adding a teaspoon of espresso powder or grated orange zest to the batter. For fillings, try a swipe of raspberry or cherry jam between layers.
Storage and Serving Suggestions
Refrigeration: The finished cake keeps best in the refrigerator, tightly wrapped, for up to 5 days. Let slices come to room temperature before serving.
Freezing: Once assembled and chilled, wrap the cake (or individual slices) in double plastic wrap and foil. Freeze for up to three months. Thaw in the refrigerator overnight or at room temperature for several hours.
Serving Ideas: Pair slices with whipped cream, a scoop of vanilla ice cream, or a pile of fresh berries for contrast.
Troubleshooting Guide
Problem | Solution |
---|---|
Soggy cake center | Bake longer; check oven temperature accuracy |
Cake crumbles during icing | Chill layers before frosting |
Ganache runs off cake | Allow cake and ganache to cool; chill cake |
Frosting splits or curdles | Beat in extra powdered sugar; add cream |
Glossary of Key Terms
- Crumb Coat: A thin layer of frosting that traps crumbs before the final, smooth coat.
- Ganache: A blend of cream and chocolate that can be poured or whipped.
- Leveling: Slicing domed cake tops for even stacking.
Final Touches and Personalization
Every baker puts their stamp on this classic. Some prefer bittersweet chocolate throughout, while others sweeten the experience with milk chocolate frosting. Edible flowers or a ring of berries offer a burst of color.
Whether you serve it tall and regal at a celebration, or just nibble forkfuls at midnight, this triple chocolate cake fulfills every chocolate desire. Customize with your favorite garnishes, and enjoy a masterpiece that looks as glorious as it tastes.

Triple Chocolate Cake
This decadent triple chocolate cake features an impossibly tender chocolate sponge. It is finished with velvety chocolate frosting. Dreamy chocolate ganache crowns the top.
Ingredients
- 1 cup semisweet chocolate, chopped
- 2 cups all-purpose flour
- 1 cup brown sugar
- 1 cup granulated sugar
- 1 cup buttermilk
- 2 large eggs, room temperature
- 2 cups unsalted butter, softened
- 3/4 cup unsweetened cocoa powder, divided
- 1/2 cup heavy whipping cream
- 1/4 teaspoon salt
- 2 teaspoons baking soda
- 4 ounces semisweet or dark chocolate, chopped
- 2 teaspoons vanilla extract
- 1 teaspoon salt
- 3/4 cup vegetable oil
- 4 cups powdered sugar
- 12 ounces semisweet chocolate, chopped
- 1 teaspoon vanilla extract
- 2-4 tablespoons heavy cream or milk, as needed
- 1 cup hot coffee (or water)
Instructions
- Preheat the oven to 350°F. Grease three 8-inch cake pans. Line the bottom of each pan with parchment paper.
- Make the cakes: Place the chopped chocolate and half of the cocoa powder in a large, heatproof bowl. Pour the hot coffee over them. Stir once. Set aside.
- In a large mixing bowl, whisk the flour, sugars, remaining cocoa powder, baking soda, and salt. In a separate bowl, whisk the oil, eggs, vanilla extract, and buttermilk. Whisk until blended.
- Gently stir the dry ingredients into the wet by hand with a spatula until just combined. Whisk the hot coffee and chocolate mix until smooth. Stir the coffee mixture into the batter.
- Divide the batter evenly between the prepared pans. Bake for 25-30 minutes. The cakes are done when a toothpick inserted in the center comes out clean. Let the cakes cool in the pans for 10 minutes. Transfer the cakes to a wire rack to cool completely.
- Make the chocolate buttercream frosting. Melt the chocolate in the microwave in 30-second increments. Stir between each spin until smooth. In a separate bowl, beat the butter. Continue until light and fluffy.
- Gradually add the powdered sugar. Beat until smooth. Add the melted chocolate, vanilla extract, and salt. Beat until combined. Finally, add the heavy cream or milk as needed to achieve the desired consistency.
- When the cakes are cool, spread a tablespoon of frosting onto a serving plate. Place one cake layer in the middle. Spread a layer of frosting on top. Repeat with the remaining two cake layers to create a stacked cake. Cover the cake evenly with the remaining frosting. Place in the fridge to chill for 30 minutes.
- Make the chocolate ganache: Place the chopped chocolate in a heatproof bowl. Heat the heavy whipping cream in a small saucepan over low heat until it starts to simmer. Remove from the heat. Pour the hot cream over the chocolate. Let it sit for 3 minutes. Whisk until smooth. Set aside to cool.
- When the cake is firm, pour the cooled ganache over the top. Use an offset spatula to help it drip over the edges. If desired, finish with extra frosting piped on top.
- Chill the cake again for at least 30-60 minutes. Serve after chilling. Enjoy!