This is such a delicious cake; it lasts for days and is fancy enough to serve with some double cream and poached rhubarb for pudding too. The quantities below make a large cake (I use a 26cm cake tin) which serves about 10 people so please feel free to halve the quantities and bake it in a 20cm cake tin if feeding fewer people. Also, I really think that using good milk chocolate here is much nicer than the bitter dark stuff I ususally cook with, but again, of course, whatever works for you works best! In this instance, we served it here with some lovely honeycomb and cold cream.