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The Ultimate Chocolate Truffle Cake

A rich, decadent chocolate truffle cake featuring moist chocolate layers and silky ganache frosting. Perfect for special occasions or any time you need a chocolate indulgence.
Prep Time 45 minutes
Cook Time 35 minutes
Cooling and Setting Time 2 hours
Total Time 3 hours 20 minutes
Course Breakfast
Cuisine American
Servings 10
Calories 484 kcal

Ingredients
  

  • 2 cups all-purpose flour
  • 2 cups granulated sugar
  • ¾ cup premium unsweetened cocoa powder
  • 2 teaspoons baking soda
  • 1 teaspoon baking powder
  • 1 teaspoon salt
  • 2 large eggs room temperature
  • 1 cup buttermilk room temperature
  • ½ cup vegetable oil
  • 2 teaspoons pure vanilla extract
  • 1 cup hot coffee or hot water
  • 16 oz 450g high-quality dark chocolate (60-70% cocoa), finely chopped
  • 2 cups heavy cream
  • 2 tablespoons unsalted butter room temperature
  • 1 teaspoon vanilla extract
  • Pinch of salt
  • Chocolate shavings for decoration
  • Fresh berries for garnish optional
  • Cocoa powder for dusting optional

Instructions
 

  • Preheat oven to 350°F (175°C). Grease two 9-inch round cake pans and line with parchment paper.
  • In a large bowl, whisk together flour, sugar, cocoa powder, baking soda, baking powder, and salt.
  • In a separate bowl, beat eggs, then add buttermilk, oil, and vanilla extract. Mix until smooth.
  • Gradually add wet ingredients to dry ingredients, stirring until just combined.
  • Pour in hot coffee and mix until batter is smooth (batter will be thin).
  • Divide batter between prepared pans and bake for 30-35 minutes until a toothpick comes out clean.
  • Cool cakes in pans for 10 minutes, then turn out onto wire racks to cool completely.
  • For ganache, place chopped chocolate in a large bowl.
  • Heat heavy cream just to a simmer, then pour over chocolate. Let sit 3-5 minutes.
  • Gently stir until smooth and glossy. Add butter, vanilla, and salt.
  • Cool ganache until spreadable, about 30-45 minutes.
  • Level cake layers if needed. Place one layer on serving plate.
  • Spread 1 cup ganache over first layer, then place second layer on top.
  • Cover top and sides with remaining ganache.
  • Decorate with chocolate shavings and optional berries.
  • Refrigerate for at least 30 minutes before serving.

Notes

For best results, use high-quality dark chocolate. The cake layers can be made one day ahead and stored wrapped in plastic at room temperature. The assembled cake can be refrigerated for up to 3 days. Bring to room temperature for 30 minutes before serving for the best texture and flavor.
Keyword chocolate cake recipe, chocolate truffle cake, decadent chocolate cake, easy chocolate truffle cake recipe, ganache frosting, special occasion dessert