Lady Magnon is a world champion Tarte Tatin maker; at least I have awarded her that title myself.
A well constructed Tatin is the pinnacle of Apple Pie making, anyone who says differently is plain WRONG. Those across The Pond who go on ad infinitum about their mother's/grandmother's Apple Pies have no idea how good a pukka pie can be.
A Tarte Tatin is an upside-down pie. First a butter/sugar caramel is made in the bottom of the pie dish, then the sliced (Bramley) Apples are laid out in a reasonably neat pattern, then pastry placed over the top and tucked into the sides. After the alloted cooking time, the pie is turned out onto its bottom to reveal the caramel infused Apple, smiling up at you.
All you then need is a dollop of thick clotted cream, and VOILA. Heaven.