Apple & Blackberry Cake (Sharlotka)

Living close by an apple orchard definitely has its perks at this time of the year. We have loads of apples, so I was looking for a cake recipe that would use lots of them up, not just one or two. This Russian Sharlotka recipe has no butter or oil in it and the structure is held up by the apples. So it is important to use cooking apples such as Bramleys that will not shrink too much once cooked. It is a dessert type apple cake and so delicious served with cream or greek yoghurt dolloped on top of it.