The simnel cake is eaten at Easter on the British Isles. It is a fruitcake with two layers of marzipan (one in the middle and one on top) and adorned with marzipan balls to symbolise the apostles and sometimes Jesus (but not Judas). Obviously, mine is an adaptation, but then I'm catering for a family with a host of dietary requirements.
It is a very ancient cake, around since at least the medieval times (marzipan was added later) and no one is quite sure of its origin, but there are plenty of myths and hypotheses. At any rate - it's pretty uncommon now and I'd like to see it brought back as an Easter tradition. So please, try it for yourself!