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Decadent Chocolate Truffle Cake – Ganache Heaven

time: 30-35 minutes Cook
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The world of desserts has a special place for chocolate lovers, and one dessert that reigns supreme in the realm of chocolate decadence is the Chocolate Truffle Cake. This luxurious treat has a history steeped in European traditions, where chocolate was once considered a precious delicacy reserved for royalty. Today, we’re going to explore the art of crafting a Decadent Chocolate Truffle Cake, a heavenly dessert that combines the velvety goodness of chocolate ganache with the tender crumb of a classic chocolate cake. This recipe will leave you and your guests craving for more.

Historical Context: Chocolate has been cherished by civilizations for centuries, dating back to the Mayans and Aztecs who consumed it as a bitter beverage. It wasn’t until the 17th century that the transformation of chocolate into a confectionery delight began. In the early 20th century, chocolate truffles made their debut, inspired by their namesake, the earthy truffle fungus. These bite-sized chocolate delights soon evolved into the glorious Chocolate Truffle Cake we know today, marrying the intensity of chocolate with the elegance of cake.


1. Preheat and Prepare:

  • Preheat your oven to 350°F (175°C). Grease two 9-inch round cake pans, line the bottoms with parchment paper, and grease the paper as well.

2. Sift and Mix Dry Ingredients:

  • In a mixing bowl, sift together the all-purpose flour, cocoa powder, granulated sugar, baking powder, baking soda, and salt. Whisk these dry ingredients together until well combined.

3. Combine Wet Ingredients:

  • In a separate bowl, beat the eggs, then add in the milk, vegetable oil, and vanilla extract. Mix until well combined.

4. Create the Cake Batter:

  • Gradually pour the wet ingredients into the dry ingredients and mix on low speed using an electric mixer until everything is well incorporated.
  • Increase the mixer speed to medium and beat for an additional 2 minutes.

5. Add Boiling Water:

  • Reduce the mixer speed to low, and carefully add the boiling water to the cake batter. Mix until the batter is smooth, but it will be thin. Don’t worry; this is how it should be.

6. Bake the Cake Layers:

  • Divide the cake batter evenly between the prepared cake pans.
  • Bake in the preheated oven for 30-35 minutes or until a toothpick inserted into the center of the cakes comes out clean.
  • Remove the cakes from the oven and let them cool in the pans for 10 minutes before transferring them to a wire rack to cool completely.

7. Prepare the Ganache:

  • While the cakes are cooling, it’s time to make the luxurious ganache. In a saucepan, heat the heavy cream until it begins to simmer. Remove it from the heat immediately.
  • Place the finely chopped dark chocolate and unsalted butter in a heatproof bowl.
  • Pour the hot cream over the chocolate and let it sit for a minute to melt the chocolate.
  • Add the vanilla extract and whisk the mixture until smooth and glossy.

8. Assemble the Cake:

  • Once the cakes are completely cool, place one cake layer on a cake turntable or serving plate.
  • Pour a generous amount of the chocolate ganache over the cake layer and spread it evenly with an offset spatula.
  • Carefully place the second cake layer on top and pour more ganache over it, allowing it to drizzle down the sides of the cake.
  • Use the offset spatula to smooth the ganache over the top and around the sides of the cake, creating a beautiful, glossy finish.

9. Chill and Serve:

  • Refrigerate the cake for at least 30 minutes to allow the ganache to set.
  • Once the ganache has set, slice into this decadent masterpiece and serve each heavenly slice to your delighted guests.


prep time
25 minutes
cooking time
time: 30-35 minutes
12 slices
total time
me: 1 hour 30 minutes


  • Two 9-inch round cake pans

  • Parchment paper

  • Mixing bowls

  • Electric mixer

  • Whisk

  • Saucepan

  • Heatproof bowl

  • Cake turntable (optional)

  • Offset spatula

  • Cooling rack


  • 1 3/4 cups all-purpose flour

  • 2 cups granulated sugar

  • 3/4 cup unsweetened cocoa powder

  • 1 1/2 tsp baking powder

  • 1 1/2 tsp baking soda

  • 1 tsp salt

  • 2 eggs

  • 1 cup whole milk

  • 1/2 cup vegetable oil

  • 2 tsp pure vanilla extract

  • 1 cup boiling water

  • For the Ganache:

  • 1 1/2 cups heavy cream

  • 12 oz high-quality dark chocolate, finely chopped

  • 2 tbsp unsalted butter

  • 1 tsp pure vanilla extract


Preheat and prepare.
Sift and mix dry ingredients.
Combine wet ingredients.
Create the cake batter.
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