If you like chocolate mousse then you will think this cake is to die for. Make sure you use good chocolate -- at least 55 percent cocoa solids. I normally go for 70-75 percent cocoa solids, but that is a very intense chocolate taste that may not be to everyone's liking. The number of steps makes this look more difficult than it is. If you are organised and lay things out beforehand, you can go from start to having the glazed cake in the fridge in about an hour. As a mould for this cake, you should use a bottomless cake ring, about 10 inches across and 4-5 inches high, although I have also used a springform pan.