I was looking for a light, rich chocolate cake that wasn't too sweet and was easy to make. I couldn't find one, so I took a couple of different recipes and doctored them to make this. It came out just as I wanted; light and fluffy without being too sweet. The red wine frosting makes it for grown ups only (at least that's what you can tell any kids that are after some!). If you prefer a more traditional sweetness, simply add more sugar - I'd suggest increasing by a third (ie to 400g). The frosting should be enough to put a layer between the two cakes and some on top. You may also like to slice each cake in two to add two more layers of frosting if you're feeling decadent - just increase the quantities.