This is like a Tarte Tatin, in that is it baked, chilled and served upside down. It’s easy enough to make: in a cake tin lined with greaseproof paper, you sprinkle brown sugar and cinnamon over the base and arrange sliced apples on top. Then a shortcrust pastry is laid over the top. I had an issue with the amount of pastry being not enough to fill the tin and I’m still not sure what happened there.
But… it was eaten and was therefore a success.
Here’s Delia Smith’s recipe for Caramelised Apple Flan (though I realise that mine looks nothing like hers!)