mine is a kind of bread-like crust with custard and fruit in the middle. I've made cherry, peach, apple, strawberry, blackberry and cranberry-orange and I tried a chocolate last week. I also tried making individual ones last week in a muffin pan and they turned out really good.
I didn't like the blackberry, but everything else has been really good. My dad only makes cherry and peach so that's what I grew up on, but I've enjoyed varying it up and trying new things.
It's so cool that you know what it is - you're the first person I know who has ever heard of it.