Chocolate Layer Cake with Vanilla Buttercream & Ganache Recipe
If you’re searching for the ultimate dessert that impresses every time, look no further than this Chocolate Layer Cake with Vanilla Buttercream & Ganache. Each slice is a stunning marriage of rich, fudgy chocolate cake, luxuriously smooth vanilla buttercream, and a swoon-worthy chocolate ganache drip. Whether you’re celebrating a birthday, milestone, or just need a little indulgence, this classic yet showstopping cake is your secret weapon for moments that deserve a little extra magic.

Ingredients You’ll Need
The beauty of this recipe is how it combines a handful of staple ingredients into something unforgettable! Every component, from the cocoa powder to the silky cream, contributes to the harmonious flavor and picture-perfect look. Here’s what you’ll need to make your Chocolate Layer Cake with Vanilla Buttercream & Ganache shine:
- All-purpose flour: Provides structure and a tender crumb so your layers hold up beautifully.
- Sugar: Sweetens the cake and helps lock in moisture for luscious, not-too-dense slices.
- Cocoa powder: Gives the chocolate cake deep, rich flavor and its gorgeous dark color.
- Baking powder and baking soda: Ensure your cake rises well and stays light, not heavy.
- Salt: Balances all the sweet and chocolatey notes in the cake and buttercream.
- Eggs: Bind the ingredients together and make the cake tender and fluffy.
- Buttermilk (or milk + vinegar): Adds tang and keeps the crumb ridiculously moist and soft.
- Vegetable oil: Boosts moistness and helps the cake stay fresh for days.
- Vanilla extract: Lifts and emphasizes all the flavors across cake and frosting.
- Hot coffee (or hot water): Deepens and intensifies the chocolate, making it even more crave-worthy.
- Unsalted butter: The foundation of a perfectly creamy, not-too-sweet buttercream.
- Powdered sugar: Melts smoothly into the butter for airy, fluffy vanilla frosting.
- Heavy cream: Adds silkiness to the buttercream and makes the ganache exceptionally glossy.
- Semi-sweet chocolate chips: Melts easily for the luscious ganache topping.
- Chocolate truffles or chocolate-covered nuts: Provide extra flair and irresistible crunch on top.
- Fresh mint leaves: Brightens the cake visually and adds a subtle fresh note.
How to Make Chocolate Layer Cake with Vanilla Buttercream & Ganache
Step 1: Prepare and Bake the Cake Layers
Start by preheating your oven to 350°F (175°C), then take a moment to grease and line three 8-inch round cake pans. This guarantees easy release and smooth layers. In a large bowl, whisk together your dry ingredients: flour, sugar, cocoa powder, baking powder, baking soda, and salt. Add in the eggs, buttermilk, oil, and vanilla extract, and mix until everything just comes together. Pour in the hot coffee and mix for a luscious, pourable batter. Divide it evenly among your pans and bake for 25 to 30 minutes, until they spring back to a gentle touch. Let them cool completely—patience here pays off for perfect assembly later.
Step 2: Whip Up the Vanilla Buttercream
While your cakes cool, make the vanilla buttercream that sets this Chocolate Layer Cake with Vanilla Buttercream & Ganache apart. Beat softened unsalted butter until creamy and almost white in color—this takes a few minutes, but the texture payoff is worth it! Gradually add powdered sugar, a little at a time, so it melds perfectly. Pour in the heavy cream, vanilla extract, and a pinch of salt, and beat until fluffy and spreadable. It should be cloud-like and just stiff enough to pipe or smear between your cake layers.
Step 3: Make the Chocolate Ganache Drip
For the showstopping ganache, simply heat your heavy cream until it just begins to simmer, then pour it over the semi-sweet chocolate chips in a heatproof bowl. Let it sit for a minute to melt, then stir gently until glossy and smooth. Letting the ganache cool just a bit will help it drip beautifully without running all over your finished cake.
Step 4: Assemble the Cake
Now comes the most satisfying part: assembly! Place your first layer on a serving plate, and spread an even layer of buttercream over the top. Repeat with the next layer or two, finishing with a generous slather on the outside. Smooth the sides with a spatula for that bakery-worthy finish. Pour your cooled ganache over the cake top, gently pushing it to the edges so those iconic drips cascade down the sides. Let the ganache set briefly before decorating.
Step 5: Decorate Like a Pro
Using a piping bag or spatula, add playful swirls or rosettes of buttercream along the top border. Crown your creation with an assortment of chocolate truffles, crunchy chocolate-covered nuts, and sprigs of fresh mint. Not only does this make your Chocolate Layer Cake with Vanilla Buttercream & Ganache look irresistible, but each bite offers a combination of textures and flavors that delights everyone at the table!
How to Serve Chocolate Layer Cake with Vanilla Buttercream & Ganache

Garnishes
The final flourish can make your creation truly unforgettable! Try adding extra chocolate curls, more truffles, a light dusting of cocoa powder, or even edible gold leaf for extra wow. Mint leaves not only pop with color but also echo the freshness in the flavors, making the Chocolate Layer Cake with Vanilla Buttercream & Ganache a real centerpiece.
Side Dishes
Pairing this decadent dessert with simple sides lets it shine. A scoop of vanilla ice cream tempers the richness, while a bowl of fresh berries complements the chocolate and adds a little zing. Sometimes, all you need is a fresh cup of coffee or a tall glass of cold milk to bring out all those dreamy cake flavors.
Creative Ways to Present
For a special occasion, create a mini dessert buffet by serving petite slices of Chocolate Layer Cake with Vanilla Buttercream & Ganache on individual plates with a drizzle of extra ganache and a single truffle on top. Or, cut the cake into slim wedges and plate with a quenelle of whipped cream and a mint sprig for an upscale touch. No matter how you slice it, a little creativity can turn this classic treat into a custom showpiece!
Make Ahead and Storage
Storing Leftovers
Once the celebration winds down, keep leftover cake fresh by storing slices or the whole cake in an airtight container at room temperature for up to two days. For longer freshness, pop it in the fridge where it will stay delicious for up to five days—the flavors actually deepen overnight!
Freezing
Looking to savor your Chocolate Layer Cake with Vanilla Buttercream & Ganache later? You’re in luck—this cake freezes beautifully. Wrap individual slices or whole unfrosted layers tightly in plastic wrap and foil, then store in the freezer for up to three months. Thaw overnight in the fridge before assembling or enjoying, and you’ll have a homemade treat ready whenever you crave it!
Reheating
If you like your cake slightly warmed (especially with a touch of melty ganache), microwave a slice on medium power for about 10–15 seconds. This softens the cake and brings those chocolate and vanilla notes front and center, making each bite feel fresh-from-the-oven, even days later.
FAQs
Can I use Dutch-process cocoa instead of natural cocoa powder?
Yes, you can substitute Dutch-process cocoa for a deeper, smoother chocolate flavor. Just keep in mind that the color will be even richer, and the cake may have a slightly different texture, but it will be just as delicious in your Chocolate Layer Cake with Vanilla Buttercream & Ganache.
What if I don’t have buttermilk?
No problem! Mix 1 cup of milk with 1 tablespoon of vinegar or lemon juice and let it sit for 5 minutes. This makes a great homemade buttermilk substitute that adds tenderness and tang to your cake layers.
How do I get clean, even cake layers?
For ultra-even cake layers, use a kitchen scale to divide your batter between pans and gently tap them on the counter to release air bubbles before baking. If needed, trim the tops after baking to make stacking easy and neat.
Why is my ganache too runny or too thick?
Ganache consistency depends on the chocolate-to-cream ratio. If it’s too runny, let it cool longer or add more chocolate. If it’s too thick, gently warm and whisk in a splash of cream. The perfect consistency will slowly drip but not race down the cake.
Can I make the cake in advance?
Absolutely! You can bake the layers up to two days ahead, wrap tightly, and refrigerate. Assemble and frost on the day you plan to serve for maximum freshness and flavor.
Final Thoughts
If you’ve ever wanted to wow a crowd or treat yourself to something truly special, make this Chocolate Layer Cake with Vanilla Buttercream & Ganache your go-to. There’s nothing quite like the look on someone’s face when you cut into those gorgeous, layered slices! If you give this recipe a try, I promise you’ll come back to it again and again—happy baking and happy sharing!