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Halloween Chocolate Fudge Cake with Orange Buttercream and Ganache Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.7 from 3 reviews
  • Author: Lucy
  • Prep Time: 1 hour
  • Cook Time: 25 minutes
  • Total Time: 2 hours 50 minutes
  • Yield: 16 servings
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Description

This Halloween Birthday Cake is a decadent dark chocolate fudge layered cake with creamy orange buttercream frosting and a rich chocolate ganache. Perfectly moist, festive, and beautifully decorated for your Halloween celebration.


Ingredients

Scale

Cake Layers

  • Nonstick baking spray
  • 1 box (15.25 ounces) dark chocolate fudge cake mix
  • 3 large eggs
  • 2 large egg yolks
  • 1 cup milk
  • ½ cup unsalted butter, melted

Buttercream Frosting

  • 9 cups powdered sugar
  • 3 cups unsalted butter (6 sticks), at room temperature
  • 2 teaspoons grated orange zest (optional)
  • 2 teaspoons vanilla extract
  • Orange food coloring
  • 3 to 4 tablespoons heavy cream, as needed

Chocolate Ganache

  • 4 ounces semi-sweet baking chocolate, chopped
  • ½ cup heavy cream
  • 1 tablespoon corn syrup (optional)
  • Black food coloring (optional)


Instructions

  1. Make the Cake Layers: Preheat your oven to 325 degrees F. Spray two 9-inch round cake pans with nonstick baking spray. In a stand mixer bowl fitted with the whisk attachment or a large bowl with a hand mixer, combine the cake mix, eggs, egg yolks, milk, and melted butter. Beat for 2 to 3 minutes until the batter is well combined and fluffy. Divide the batter evenly between the prepared pans.
  2. Bake the Cakes: Place the pans on the center rack of the oven and bake for 25 minutes, rotating the pans halfway through. Check doneness by inserting a toothpick into the center; it should come out clean. Remove from oven and cool pans on a wire rack for 5 minutes before turning cakes out onto racks. Let cool completely.
  3. Make the Buttercream Frosting: In a mixing bowl, beat together powdered sugar and butter on low speed until blended. Increase speed to medium and beat for 3 minutes until smooth. Add orange zest if using and vanilla extract, then beat for 1 more minute. Add orange food coloring until desired shade is achieved. Add heavy cream one tablespoon at a time, beating between additions, until the frosting is spreadable.
  4. Assemble the Cake: Using a cake level or serrated knife, trim the crowns off the cake layers to level them. Slice each layer horizontally in half to create four layers total. Place one layer on a serving plate or cake stand, then spread a ½-inch layer of buttercream evenly to the edges. Repeat layering and frosting with each cake layer. Chill the assembly for 30 minutes.
  5. Crumb Coat: Apply a thin layer of frosting around the whole cake to seal in crumbs. Refrigerate for another 30 minutes to set the crumb coat.
  6. Frost the Cake: Frost the top and sides of the cake with the remaining buttercream evenly. Refrigerate until ready to add ganache.
  7. Make the Chocolate Ganache: Place chopped chocolate in a medium bowl. Heat cream and corn syrup (if using) in a small saucepan over medium-low heat until it barely simmers. Pour hot cream over chocolate and stir until chocolate melts and mixture is smooth. Add black food coloring to deepen the color if desired.
  8. Finish the Cake: Pour the ganache over the chilled cake, allowing it to drip down the sides naturally. Let the ganache firm at room temperature before slicing and serving.

Notes

  • Corn syrup in the ganache is optional but adds shine and flexibility to the ganache. You can omit it if desired.
  • If the ganache is too thick, add an additional tablespoon of warmed cream to make it more pourable.
  • Make sure cake layers are completely cooled before assembling to avoid melting the buttercream.
  • Use an offset spatula for even frosting application.
  • Chilling the crumb coat and frosting layers helps to stabilize the cake for ganache application.

Nutrition

  • Serving Size: 1 slice
  • Calories: 480 kcal
  • Sugar: 55 g
  • Sodium: 220 mg
  • Fat: 26 g
  • Saturated Fat: 15 g
  • Unsaturated Fat: 9 g
  • Trans Fat: 0.5 g
  • Carbohydrates: 58 g
  • Fiber: 3 g
  • Protein: 5 g
  • Cholesterol: 105 mg