Preheat your oven to 350°F (175°C). Grease three 8-inch round cake pans and line them with parchment paper.

In a large mixing bowl, sift together the flour, cocoa powder, sugar, baking powder, baking soda, and salt. Whisk to combine thoroughly.

Create a well in the center and add the eggs, milk, oil, and vanilla. Beat on medium speed until smooth and creamy.

Stir in the hot coffee until fully combined. Enjoy the aroma as your batter comes together.

Pour the batter evenly into the prepared pans and bake for 25-30 minutes, or until a toothpick comes out clean.

Cool the cakes in the pans for 10 minutes, then transfer to a wire rack to cool completely.

For the filling, whisk together the sugar, cornstarch, and egg yolks. Gradually add the orange juice and cook over medium heat until thickened.

For the ganache, heat the cream until steaming, then pour over the chocolate. Stir until smooth.

Assemble the cake by layering the first cake with orange filling, followed by the second layer. Repeat with filling and pour ganache over the top.

Garnish with fresh orange slices or candied orange peel before serving.