01 - Preheat oven to 350°F. Grease and line two 9-inch round cake pans with parchment paper.
02 - Sift together flour, sugar, cocoa powder, baking powder, baking soda, and salt in a large bowl.
03 - Whisk milk, vegetable oil, eggs, and vanilla extract in a separate bowl until fully combined.
04 - Gradually add wet ingredients into dry mixture, stirring gently until just combined.
05 - Pour in hot brewed coffee and mix until batter is smooth and slightly runny.
06 - Divide batter evenly between prepared pans.
07 - Bake for 30 to 35 minutes until a toothpick inserted in the center comes out clean.
08 - Let cakes cool in pans for 10 minutes then remove and place on wire rack to cool completely.
09 - Place chopped chocolate in a heatproof bowl. Heat cream until simmering, pour over chocolate, let sit 2 minutes, add butter and stir until smooth.
10 - Spread ganache on one cake layer, top with second layer, coat entire cake with remaining ganache. Allow to set before slicing.