1: Prepare the mascarpone cream: in the bowl of a food processor, put: 250 g Mascarpone, 250 ml liquid cream, 70 g caster sugar, 10 g vanilla sugar and 2 eggs. Beat until this becomes a light cream. Set aside in the fridge.
3: Melt 80 g butter in a pan over high heat, then add the diced apples.
4: Scatter 80 g caster sugar over the top and cook, stirring from time to time or, better still, shake the pan and toss lightly (sauter) until the apples are caramelized, rather like for a tarte tatin. Leave to cool.
5: Put a layer of tatin apples in the bottom of each glass.
6: Cover with mascarpone cream and finish with a piece of apple on the top.
Remarks
You can flavour the mascarpone cream with any alcohol you choose, by adding 2 tablespoonsful of Calvados, for example. For a flavour that is more like tiramisu, add 2 tablespoonsful of amaretto.