Name: Decadent Chocolate Ganache Cake Recipe
Prep time: 20 min
Cook time: 35 min
Total time: 2 h 10 min
Cuisine: American
Ingredients: 160 grams (1⅓ cups) all purpose flour; ½ teaspoon baking soda, sifted; ¾ teaspoon kosher salt; 113 grams (½ cup; 4 ounces) unsalted butter, melted; 30 mL (2 Tablespoons) vegetable oil, neutral flavor; 200 grams (1 cup) granulated sugar; 20 grams (¼ cup) cocoa powder, Dutch process (alkalized), sifted; 166 mL (⅔ cup) coffee, strongly brewed, hot; 2 large eggs, room temperature; 80 grams (⅓ cup) sour cream, full fat; 1 teaspoon vanilla extract; 125 mL (½ cup; 4 ounces) heavy cream; 113 grams (4 ounces) dark chocolate, finely chopped; 65% cacao; 125 mL (½ cup; 4 ounces) heavy cream; 113 grams (4 ounces) dark chocolate, finely chopped; 65% cacao

Jump to Recipe· 4.2 from 80 reviews

If you are a chocolate lover, you are absolutely going to adore this Decadent Chocolate Ganache Cake Recipe. This cake combines the richness of melted butter and vegetable oil with the perfect moist crumb, while an indulgent dark chocolate ganache brings creamy whipped filling and a glossy smooth glaze together in perfect harmony. Whether you’re celebrating a special occasion or just craving a slice of pure chocolate bliss, this cake will become a go-to favorite that’s as impressive as it is easy to make.

Ingredients You'll Need

A white bowl filled with smooth, thick dark chocolate batter that has a shiny texture. The batter spreads evenly inside the bowl with some streaks on the edges. A silver whisk with thin metal wires is partially dipped in the batter, resting at the center and creating subtle swirls. The bowl is placed on a white marbled surface next to a striped gray cloth. photo taken with an iphone --ar 4:5 --v 7

All the ingredients in this Decadent Chocolate Ganache Cake Recipe are simple, yet essential for creating that luxurious texture and deep cocoa flavor you dream about in a chocolate cake. Each component plays its part in balancing moisture, richness, and that unmistakable chocolate punch.

160 grams (1⅓ cups) all purpose flour: The backbone providing structure to the cake.
½ teaspoon baking soda, sifted: Helps the cake rise for a light but tender crumb.
¾ teaspoon kosher salt: Enhances the chocolate flavor and balances sweetness.
113 grams (½ cup; 4 ounces) unsalted butter, melted: Infuses richness and melts beautifully into the batter.
30 mL (2 Tablespoons) vegetable oil, neutral flavor: Keeps the cake moist and tender over time.
200 grams (1 cup) granulated sugar: Sweetness that balances the bittersweet cocoa.
20 grams (¼ cup) cocoa powder, Dutch process (alkalized), sifted: Delivers deep, intense chocolate flavor with a smooth finish.
166 mL (⅔ cup) coffee, strongly brewed, hot: Brings out the richness of the chocolate without adding a coffee taste.
2 large eggs, room temperature: Adds structure and richness while helping emulsify the batter.
80 grams (⅓ cup) sour cream, full fat: Provides moisture and a subtle tang, elevating the flavor complexity.
1 teaspoon vanilla extract: Rounds out the flavor, enhancing sweetness and chocolate notes.
125 mL (½ cup; 4 ounces) heavy cream (for filling and glaze): The base of the luscious ganache, delivering creaminess and silkiness.
113 grams (4 ounces) dark chocolate, finely chopped (65% recommended): The star ingredient for the rich ganache, offering bittersweet depth.

How to Make Decadent Chocolate Ganache Cake Recipe

Step 1: Prepare the Cake Batter

Start by preheating your oven to 350° F (177° C). Line and grease an 8-inch cake pan meticulously to ensure an easy release. Whisk together your dry ingredients — flour, baking soda, and salt — in a bowl for even distribution. In a separate large bowl, combine melted butter, vegetable oil, sugar, and cocoa powder until smooth. Add the hot brewed coffee to this mixture; it intensifies the chocolate flavor and creates a velvety batter.

Step 2: Incorporate Eggs and Dry Ingredients

Add eggs one at a time into the butter-chocolate mixture, whisking thoroughly after each addition so your batter is silky and smooth. Then add in the dry ingredients, whisking gently but completely to avoid flour pockets. Finish by folding in sour cream and vanilla extract, which will add moisture and a lovely subtle tang to your cake.

Step 3: Bake and Cool the Cake

Pour the batter into the prepared pan, giving it a few firm raps on the countertop to release any trapped air bubbles. Bake for 30-35 minutes until the cake springs back lightly when touched, the edges pull slightly from the pan, and a toothpick comes out clean. Cool the cake in its pan for about 10-15 minutes before inverting onto a wire rack to cool completely. This cooling step is crucial for an even, moist crumb and to prepare for the ganache layers.

Step 4: Torte the Cake

Once cooled, use a serrated knife to carefully slice the cake horizontally into two equal layers. Mark a shallow groove around the cake’s edge as a guide and cut through slowly to keep your cut straight. This torted cake will allow you to build in that luscious whipped chocolate ganache filling between the layers.

Step 5: Make and Whip the Chocolate Ganache Filling

Heat heavy cream until nearly boiling, then pour it over the finely chopped dark chocolate. Let the mixture stand for 2-3 minutes to melt completely, whisking gently until smooth. Allow the ganache to cool until it begins to set, whisking it in a stand mixer until fluffy and lighter in color. Be careful not to overwhip, which could compromise the silky texture.

Step 6: Assemble the Cake with Ganache Filling

Place the bottom layer of cake on a rack over a baking sheet to catch excess ganache. Spread the whipped ganache evenly across the top, reaching the edges so every bite gets that chocolate creaminess. Place the top layer on the ganache with the cut side down and press gently to secure the layers together. Smooth out the edges with a spatula to get a flawless surface for the glaze.

Step 7: Prepare and Pour the Chocolate Ganache Glaze

Repeat the same method as the filling to make the ganache glaze. Pour this glossy glaze generously over the top of the assembled cake, allowing it to cascade over the sides naturally. Use a spatula or spoon to spread and swirl the glaze as desired. Transfer carefully to a serving platter and touch up any drips or edges for a polished look. Let the ganache set at room temperature for about an hour before serving so it firms into a shiny, irresistible coat.

How to Serve Decadent Chocolate Ganache Cake Recipe

A round chocolate cake with a glossy, smooth dark brown chocolate glaze on top, creating a ripple pattern in the center. The cake is sliced into eight pieces, with two slices slightly lifted to show three layers inside: two dark brown chocolate cake layers separated by a lighter chocolate cream layer. The top of the cake is decorated with small pieces of chocolate shavings and some coarse salt flakes scattered over the glaze. The cake sits on a white plate with a simple design, placed on a white marbled surface. Near the cake, there are two small wooden bowls, one with chocolate shavings and the other with coarse salt. photo taken with an iphone --ar 4:5 --v 7

Garnishes

Enhance your presentation by sprinkling the top edge of your Decadent Chocolate Ganache Cake Recipe with chocolate shavings or a pinch of flaky sea salt. These simple touches add texture and a burst of flavor contrast that make each slice even more memorable. Fresh berries or edible flowers also make stunning, fresh garnishes for a pop of color.

Side Dishes

Pair your cake with a scoop of vanilla bean ice cream or a dollop of lightly sweetened whipped cream to beautifully balance the richness. If you prefer fruits, tart raspberries or bright oranges complement the chocolate notes perfectly. A steaming cup of coffee or black tea rounds out this decadent dessert experience.

Creative Ways to Present

For a special occasion, consider serving individual slices on elegant plates with artistic drizzles of extra ganache or raspberry coulis. You can also layer the cake with fresh fruit between the whipped ganache layers for a colorful and fresh twist. Styling the cake with gold leaf flakes adds luxurious sparkle for celebrations that need that wow factor.

Make Ahead and Storage

Storing Leftovers

This cake keeps wonderfully in the refrigerator for up to 4 days. Cover it loosely with plastic wrap or store in an airtight container to maintain moisture without drying out the ganache cake layers. Bring slices to room temperature before serving for the best texture and flavor.

Freezing

You can freeze this Decadent Chocolate Ganache Cake Recipe by wrapping it tightly in plastic wrap and then in foil to prevent freezer burn. Freeze for up to 3 months. Thaw in the refrigerator overnight, then bring to room temperature before serving to enjoy that fresh-from-the-oven taste.

Reheating

Since this is a chocolate ganache cake, reheating is usually not necessary and could alter texture. If preferred warm, let slices come to room temperature and enjoy as is — chocolate ganache is always best served smooth and cool or at room temperature rather than heated.

FAQs

Can I use regular cocoa powder instead of Dutch process in this Decadent Chocolate Ganache Cake Recipe?

Yes, you can substitute regular cocoa powder if needed, but Dutch process cocoa provides a richer, less acidic flavor that perfectly complements the coffee and chocolate ganache. Adjust the leavening slightly if your baking soda reacts differently with natural cocoa.

What type of chocolate is best for the ganache?

Using a dark chocolate bar with around 60-70% cacao is ideal. It delivers an intense chocolate flavor without overwhelming bitterness. Avoid low-quality or overly sweet chocolates for the best texture and taste.

Can I make this cake gluten-free?

You can try substituting the all-purpose flour with a gluten-free blend designed for baking. Be sure it contains xanthan gum or another binder to keep the cake structure intact. Baking times may vary, so keep an eye on the cake as it bakes.

Is it necessary to torte the cake?

While torting is optional, it allows you to insert the luscious whipped chocolate ganache filling between layers, making the cake extra moist and indulgent. If you prefer, you might slice the cake vertically or add the ganache only on top, though the texture experience will differ.

How long does it take for the ganache glaze to set?

At room temperature, the ganache glaze usually sets in about 60 minutes. For faster setting, you can refrigerate the cake, but be aware this might cause the ganache to harden more and lose some of its silky shine.

Final Thoughts

This Decadent Chocolate Ganache Cake Recipe is a remarkable treat that makes chocolate dreams come true with every bite. Its rich flavor, moist crumb, and elegant presentation make it perfect for impressing guests or giving yourself a well-deserved indulgence. I truly hope you try this recipe and find as much joy in making and eating it as I do sharing it with you!