Ingredients
Cake
- 1 3/4 cups (219g) all-purpose flour (spooned and leveled)
- 3/4 cup (62g) unsweetened natural cocoa powder
- 1 3/4 cups (350g) granulated sugar
- 2 teaspoons baking soda
- 1 teaspoon baking powder
- 1 teaspoon salt
- 2 teaspoons espresso powder (optional)
- 1/2 cup (120ml) vegetable oil (canola oil or melted coconut oil also work)
- 2 large eggs, at room temperature
- 2 teaspoons pure vanilla extract
- 1 cup (240ml) buttermilk, at room temperature
- 1 cup (240ml) freshly brewed strong hot coffee (regular or decaf)
Chocolate Buttercream
- 1 1/4 cups (282g) unsalted butter, softened to room temperature
- 3 1/2 cups (420g) confectioners’ sugar
- 3/4 cup (65g) unsweetened cocoa powder (natural or Dutch-process)
- 3–5 Tablespoons (45–75ml) heavy cream (or half-and-half or milk), at room temperature
- 1/4 teaspoon salt
- 1 teaspoon pure vanilla extract
Optional Decoration
- Semi-sweet chocolate chips
The Best Triple Chocolate Layer Cake (Yes, Really)
This chocolate layer cake is the kind of dessert people remember: intensely chocolatey, incredibly moist, and finished with a smooth, creamy chocolate buttercream. If you love rich chocolate desserts, this recipe delivers every time.
What Makes This Chocolate Cake Special
This cake is:
- Extra moist
- Soft and tender with a velvety crumb
- Deeply chocolate-forward
- Rich and bold, similar in intensity to a flourless chocolate cake
- Frosted with chocolate buttercream
- Designed as 2 layers, but it adapts easily to 3 layers or a sheet cake
Ingredient Notes (And Why They Matter)
All-purpose flour
All-purpose flour gives the cake the structure it needs. Avoid cake flour here—paired with light cocoa powder, cake flour can make the texture too delicate and less stable.
Unsweetened natural cocoa powder
Use natural cocoa powder, not Dutch-process cocoa, for the cake. The cake’s leavening and acidity are designed specifically around natural cocoa.
Baking soda + baking powder
This recipe uses both to create reliable lift and a balanced crumb.
Salt
A small amount of salt sharpens the chocolate flavor and prevents the cake from tasting flat.
Espresso powder (optional)
Espresso powder is optional, but highly recommended because it amplifies the chocolate taste. The cake won’t taste like coffee.
Oil (not butter)
Oil is essential here. Cocoa powder can dry out baked goods, and oil keeps the cake moist and tender far longer than butter-based batters.
Eggs (room temperature)
Room temperature eggs blend more smoothly and help the batter emulsify properly. If your eggs are cold, place them in warm water for about 10 minutes.
Buttermilk
Buttermilk adds both moisture and acidity, improving texture and supporting the rise.
Vanilla extract
Vanilla rounds out the chocolate and adds warmth to the overall flavor.
Hot coffee (or hot water)
A hot liquid helps the cocoa bloom, intensifying the chocolate flavor and dissolving cocoa more evenly. Coffee gives the deepest flavor, but hot water is a fine substitute (decaf coffee works too).
Easy Method: No Mixer Needed
This is a simple, beginner-friendly chocolate cake batter:
- Whisk the dry ingredients in one bowl.
- Whisk the wet ingredients in a second bowl.
- Combine wet + dry, then whisk in the hot coffee.
- The batter will be thin—this is normal.
- Divide into two 9-inch cake pans.
Want different sizes?
- You can adapt it into 3 layers (or even 4 thinner layers) using 8-inch or 9-inch pans.
- It also works well as a 9×13-inch quarter sheet cake.
Need a single layer? Use a one-layer mint chocolate cake recipe instead.
Prefer cupcakes? Choose a dedicated moist chocolate cupcake recipe for best results.
Optional Variation: Add Sour Cream
There are two common approaches to the wet ingredients:
- Make it as written with buttermilk + hot coffee/water, or
- Add sour cream, reducing the liquid slightly to keep the batter balanced.
Either option follows the same mixing process and produces a moist, flavorful cake.
Chocolate Buttercream: Smooth, Rich, and Flexible
The buttercream comes together with:
- Unsalted butter
- Confectioners’ sugar
- Cocoa powder
- Heavy cream (or milk)
- Vanilla + salt
Since the frosting doesn’t rely on chemical leavening, you can use natural or Dutch-process cocoa in the buttercream. Heavy cream creates the creamiest texture, but milk works when needed.
Not in the mood for chocolate frosting? This cake also tastes great with vanilla buttercream or strawberry buttercream.
Why It’s Called “Triple Chocolate” (With Only 2 Layers)
It’s “triple chocolate” because chocolate appears three ways:
- Chocolate cake
- Chocolate buttercream
- Chocolate chips (optional, but highly encouraged)
Pile the chips on top for a bakery-style finish—then slice, serve, and enjoy.
