If you're a competitive cake-maker on the hunt for something to knock the judges' socks off, look no further. These five masterpieces range in ease from the proverbial 'piece of cake' to the decidedly challenging. All are stand-outs when it comes to taste and appearance. Just take your pick of 'Tres-leches' (three-milk) cake - a true labour of love, but oh, so worth it - white chocolate and guava cake, coffee, chocolate and hazelnut meringue layer cake, the ultimate death-by-chocolate mousse gateau or plum and ginger chocolate cake. Decadence on a plate, and it's divine.