Read about it here I always thought it was american but it appears not from that webpage.
Its the biscuit base from cheesecake, with a thick caramel/toffee sauce on top, and then with fresh bananas sliced on top and then with cream on top of that.
It looks like this (although I would use much less cream than that)
Well the bananas ARE SF and a fruit....they make an amazing one in the work canteen too. If its on the menu tomorrow I am going to have it. My spin class tomorrow night will burn around 400 cals anyway....