Directions

• Bloom the Cocoa and Espresso Powders
  In a large bowl, combine Dutch cocoa powder and espresso powder. Pour hot water over the powders and whisk thoroughly until smooth and free of clumps. This blooming process intensifies the chocolate flavor.
• Mix the Wet Ingredients
  Add sour cream, oil, and vanilla extract to the chocolate mixture and whisk until smooth. Crack in three whole eggs and whisk again until fully combined. Use a rubber spatula to scrape down the sides of the bowl to ensure even mixing.
• Combine Dry Ingredients
  In the bowl of a stand mixer, add cake flour, brown sugar, white sugar, baking powder, baking soda, and salt. Whisk to combine and eliminate any major clumps.
• Make the Batter
  Pour the wet ingredients into the dry ingredients. Using the paddle attachment on the stand mixer, mix on low speed until fully combined. Pause to scrape down the sides and bottom of the bowl with a rubber spatula, then mix again to ensure a uniform batter.
• Prepare Cake Pans and Bake
  Line three cake pans with parchment paper and spray thoroughly with cooking spray. Divide the batter evenly among the pans (eyeballing or weighing for precision). Tap each pan on the counter a few times to remove air bubbles. Bake at 350°F (175°C) for 20–25 minutes or until a toothpick inserted comes out clean. Let cakes cool completely
• Make the Frosting Base
  Roughly chop the chocolate and melt it in a double boiler with honey and heavy cream. Stir constantly until smooth and glossy. Remove from heat and let cool to room temperature.
• Prepare Buttercream
  In the stand mixer, beat softened butter using the paddle attachment. Sift in powdered sugar and cocoa powder, then mix on low until smooth. Add a pinch of salt.
• Combine Frosting Elements
  Slowly drizzle the cooled melted chocolate into the buttercream while mixing on low. Once fully added, increase the speed and whip until the frosting is fluffy and evenly combined. Scrape down the sides of the bowl as needed.
• Trim and Stack Cake Layers
  Once cakes are cool, use a serrated knife to trim the tops of each layer flat. Place a dollop of frosting on your cake stand to anchor the bottom layer, then place the first cake layer on top.
• Frost the Cake
  Spread an even layer of frosting on the first cake layer, stopping just before the edge. Add the second and third layers, repeating the frosting step. Once stacked, use the remaining frosting to cover the entire cake, allowing some to naturally drip down the sides.
• Add Decorative Texture
  Use an offset spatula or other tool to create a textured, swirled pattern on the top and sides of the cake. This adds visual appeal and a handmade artistic touch.
• Serve and Enjoy
  Chill the cake slightly to set the frosting, then slice a generous piece and enjoy the rich, moist, ultra-chocolatey results.