Ingredients:
- All-purpose flour: 3 cups (360g)
- Granulated sugar: 2 cups (400g)
- Unsweetened cocoa powder: ¾ cup (75g)
- Baking powder: 1 ½ teaspoons (7.5ml)
- Baking soda: 1 ½ teaspoons (7.5ml)
- Salt: 1 teaspoon (5ml)
- Large eggs: 2
- Buttermilk: 1 cup (240ml)
- Vegetable oil: ½ cup (120ml)
- Vanilla extract: 2 teaspoons (10ml)
- Boiling water: 1 cup (240ml)
- Unsalted butter: 1 cup (226g), softened
- Powdered sugar: 4 cups (480g)
- Heavy cream: ¼ cup (60ml)
- Vanilla extract: 1 teaspoon (5ml)
- Gel food coloring: Midnight Blue (as needed for desired shade)
- Edible silver luster dust
- Edible silver sprinkles
- Edible silver dragees
- Corn syrup (small amount, for adhering decorations)
Instructions:
- Grease and flour the cake pans, line bottoms with parchment.
- Whisk together flour, sugar, cocoa powder, baking powder, baking soda, and salt.
- In a separate bowl, whisk eggs, buttermilk, oil, and vanilla.
- Gradually add wet ingredients to dry ingredients, mixing until just combined.
- Slowly pour in boiling water, mixing until batter is smooth. Batter will be thin.
- Divide batter evenly among pans, bake at 350°F (175°C) for 30-35 minutes, or until a toothpick inserted into the center comes out clean.
- Let cakes cool in pans for 10 minutes, then invert onto a wire rack to cool completely.
- Beat softened butter until light and fluffy. Gradually add powdered sugar, alternating with heavy cream. Mix in vanilla.
- Gradually add midnight blue gel food coloring until desired shade is achieved.
- If necessary, use a serrated knife to level the cake layers.
- Place one cake layer on a serving plate or cake stand. Spread with buttercream. Repeat with remaining layers.
- Frost the entire cake with a thin crumb coat. Chill for 30 minutes.
- Apply a final, thicker layer of buttercream to the cake. Smooth with an offset spatula.
- Lightly brush areas of the cake with corn syrup where you want the silver decorations to adhere.
- Use a paintbrush to apply edible silver luster dust to the top and sides of the cake. Sprinkle silver sprinkles and dragees down one side of the cake to create a cascading effect.
- Chill the cake for at least 30 minutes before serving.