This tart looks like something you might have bought from a French patisserie, but it is so easy to make. Serve it gently warmed with a dusting of icing sugar, or top it with chocolate curls ...

Tap the pan sharply a few times all round with a wooden spoon, then lift off. The tart should be left on the serving dish with the apple on top. Serve warm with double cream, crème fraîche or ...