She tried to rescue it by covering up the evidence with pastry in a desperate culinary move many of us can probably relate to. When she turned it out, it was not as disastrous as she thought. In fact, the customers loved it - and a new dish was born.
Tip the apples and caramel into a tart or quiche dish, spread them out and leave to cool for at least 15 minutes.
Then lay the pastry over the apples and tuck it in round the edges. Prick the pastry all over with a fork. Bake for 20 minutes until the pastry just starts to colour.
Take the tart out of the oven and let it cool for at least 20-25 minutes before turning it out onto a serving dish. Best with a generous helping of thick crème fraîche.