This has been adapted from the more complicated bakery recipe for a simple quick to make at home version...if you have a chance this weekend.. give it a go & would be fantastic to hear from you with your results:

Ingredients

1 pack of pre-made or shop bought sheet puff pastry 
8oz (220g) full-fat mascarpone cheese
4 heaped tablespoons icing sugar
Amaretto to taste
8 Braeburn apples, peeled, cored and very thinly sliced  OR 8 Conference pears, peeled, cored & very thinly sliced

Method

1. Pre-heat oven to 180°C/350°F/Gas Mark 4.
2. Lightly grease, with butter, a flat rectangular biscuit tray and place the pastry on it, trimming any excess.
3. In a bowl, mix the mascarpone, Amaretto and sugar. Be generous with the amaretto.
4. Spread this over the pastry.
5. Arrange the apples or pears over the cheese, try to get lay the fruit all in the same direction and ensure that all the cheese is covered by slightly overlapping the sliced apples or pears.
6. Bake in the oven for 25 minutes or until the edges are tanned.
7. Dust with more icing sugar and serve warm or cold with an extra spoon of mascarpone mixed in with a glug or two of amaretto or double cream, ice cream or custard.. OR.......whatever you fancy.