Ingredients
Equipment
Method
- Step 1: Preheat your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans to ensure easy release.
- Step 2: In a large mixing bowl, sift together the flour, sugar, cocoa powder, baking powder, baking soda, and salt. The sifting helps to aerate the dry ingredients.
- Step 3: Add the softened butter, eggs, vanilla extract, and buttermilk to the dry ingredients. Mix on medium speed until well combined and smooth.
- Step 4: Divide the batter evenly between the prepared cake pans. Bake for 25-30 minutes, or until a toothpick inserted in the center comes out clean. Allow the cakes to cool in the pans for 10 minutes, then transfer to wire racks to cool completely.
- Step 5: For the ganache, place the chopped dark chocolate in a heatproof bowl. In a saucepan, heat the heavy cream and butter over medium heat until it just begins to simmer. Pour the hot cream mixture over the chocolate and let it sit for 5 minutes. Stir until smooth and glossy.
- Step 6: Once the cakes are completely cool, place one layer on a serving plate. Pour half of the ganache over the top and spread it evenly. Place the second cake layer on top and pour the remaining ganache over it, allowing it to drip down the sides.
- Step 7: Sprinkle the toasted hazelnuts on top of the ganache. If desired, sprinkle with a pinch of sea salt for that extra touch of flavor.
- Step 8: Allow the ganache to set for about 30 minutes before serving.
Notes
Store any leftover cake in an airtight container at room temperature for up to 3 days. If you want to keep it longer, you can refrigerate it for up to a week.
