Ingredients

  • baking spray
  • 1 cup 60% cacao bittersweet chocolate morsels (such as Ghirardelli®)
  • ¾ cup hot brewed coffee
  • 4 large eggs, at room temperature
  • ¾ cup canola oil
  • ¾ cup sour cream, at room temperature
  • 1 teaspoon vanilla extract
  • 2 ⅓ cups all-purpose flour
  • 2 cups granulated sugar
  • ¼ cup unsweetened cocoa powder
  • 1 teaspoon kosher salt
  • 1 tablespoon baking soda
  • ½ teaspoon baking powder
  • 1 cup finely chopped roasted chestnuts
  • 1 cup powdered sugar
  • ¾ cup salted butter, softened
  • 2 (3.5 ounce) cans chestnut spread
  • 8 ounces bittersweet chocolate, chopped
  • 1 ¼ cups heavy whipping cream
  • 2 tablespoons light corn syrup

Directions

  • Preheat the oven to 350 degrees F (175 degrees C). Spray 3 (9-inch) round cake pans with baking spray.
  • Combine chocolate morsels and hot coffee in a medium bowl; let stand for 2 minutes and then stir until chocolate is melted, 1 to 2 minutes. Whisk in eggs, oil, sour cream, and vanilla until smooth.
  • Whisk together flour, sugar, cocoa powder, salt, baking soda, and baking powder in a large bowl. Stir in egg mixture. Fold in chopped chestnuts. Divide batter evenly between prepared pans (about 2 cups per pan).

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