01 -
Preheat oven to 350°F. Line three 8-inch round cake pans with parchment paper.
02 -
In a large bowl, whisk together flour, sugar, cocoa powder, baking soda, and salt.
03 -
Add eggs, vegetable oil, and buttermilk to the dry ingredients. Stir just until incorporated.
04 -
Pour in hot coffee and whisk gently until a smooth batter forms. Divide batter evenly among prepared pans.
05 -
Bake for 30 to 35 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs. Cool cakes completely.
06 -
Using an electric stand mixer, beat softened butter on medium-high speed for 5 minutes until pale and creamy. Gradually add powdered sugar, orange zest, orange juice, and orange extract. Beat until the filling is thick and smooth.
07 -
Place one cake layer on a dessert plate. Spread a thick layer of orange filling on top. Repeat stacking with remaining layers and filling. Chill the assembled cake for 20 minutes.
08 -
Heat heavy cream until steaming, then pour over chocolate chips. Let stand for 2 minutes, then stir until glossy and smooth.
09 -
Pour ganache over the chilled cake, allowing it to drip down the sides. Garnish with orange halves, a twist of orange peel, and sprinkle dark chocolate shavings on top.