Line 2 watertight springform cake tins with baking paper, grease with Butter, and dust with Cocoa Powder. If your oven can only fit one tin at a time, split the ingredients and cook in 2 batches
Pre-heat the oven to 190℃ (375°F, Fan 170°C, Gas Mark 5)
Put 80g of Dark Chocolate and 120g Butter in a bowl and melt together, either in a microwave, or by placing on top of a small saucepan of boiling water
Meanwhile, in a separate bowl, combine 220g of All Purpose Flour, 82g of Cocoa Powder, 10g of Baking Powder, and 6g of Baking Soda, then mix thoroughly
Once the Chocolate and butter have melted, add 350g of Caster Sugar, 2 Eggs, and 6g of Vanilla Extract and blitz with an electric hand mixer until completely combined
Concurrently, take 250g of Black Coffee (your basic Americano, please don't use instant), place in a saucepan and bring to the boil
While the coffee is heating up, pour 250g of Milk into the cake mix and give it another blast with the mixer. Then, add the Flour, Cocoa, and Baking powder concoction and blitz once again. Don't mix any longer than is absolutely necessary, air is your enemy.
Finally, slowly add the boiling Coffee while operating the mixer in your spare hand. This will result in a very watery mixture
Pour this mixture into the per-prepared cake tins, and bake in the centre of the oven until you can poke it with a toothpick and it comes out clean. This should take around 40 minutes
When cooked, remove from the cake tin as soon as is feasible and leave to cool on a wire rack
Once cool, slather liberally with dark chocolate ganache, including a layer between the two sponges. See the extra notes if you are useless at this (like I am) When ready, overdose on pure, unadulterated chocolatey goodness!