My Mum found this recipe somewhere when I was about 5 and it was such a hit that for several successive years we had only this cake for any holiday. Even though we later introduced more variation to our desserts menu, this one is still the biggest favourite. It may seem complicated, but I was 13 when I made it for the first time completely on my own - so it should not be too difficult. Still, it is somewhat time-consuming, so I now usually make it only once a year, for the New Year's Day. It is big enough for a company of 8-10 people. One of the most enjoyable things is having your guests to try and guess what the filling is made of (no one ever succeeds, trust me :) ). The prep time includes time needed to make the batter, the filling and the topping and to assemble the cake.