Take the pastry out of the fridge for 1 min or so before handling it.
Place the jam into a little bowl and mix it for 10-15 seconds pretty energetically so it gets into a nice and homogenized smother texture**.
Wash and chop all the fruits that you choose to use and place them on a plate. Set aside.
Preheat the oven to 180°C.
On the working surface unroll the pastry and cut it into squares or rectangles. Rectangles are more likely to come out as the shape of the overall pastry is a rectangle.
Score each pastry shape with a sharp knife around the edges (about 1 cm from the edges. Just make sure you do not reach the other side but just literally give them a good scratch.
Spoon about ⅔ of tablespoon of jam on each pastry rectangle within the scored area.
Transfer the rectangles to an oven tray that's been lined with parchment paper.
Place your chopped fruits on each rectangle and brush with a little melted butter.
Place in the preheated oven and bake at 180°C for 30-35 minutes until nice and crispy. Keep an eye so it doesn't get too brown. Just allow it to bake until golden brown. Each oven is slightly different but if fan-assisted 35 min will probably be just perfect. Mine cooked for just under 35 min.
10. Take out of the oven and allow them to cool for 5 min.
11. Dust them with a little icing sugar and.... watch them disappear ??
Notes
* As fruits use whatever you have in hand. I had all the fruits possible but used apples, bananas, raspberries apricots, which I have used a bit of each.** If the jam isn't runny and for this recipe try and get a jam that has got a more solid texture rather than a runny one.It makes it a lot easier to handle it. You could, by all means, use custard instead of jam. Enjoy!