What you'll need is just a whipping cream, fruit cocktail (or other fruits of your choice, normally people use apples) and also a puff pastry.
First, you need to whip the cream until it becomes fluffy. If you prefer it to be a bit sweet, you can add some icing sugar at your own level of sweetness. I'd prefer to add the icing sugar, so that it would be tastier.
Next, you need to bake the puff pastry according to the instructions given at the back of the packet. I prefer it to be cut into 8 small pieces. You can also make a large strudel and cut into small pieces later on once you've finished. But I don't like to make it like that as it wouldn't look nice - a bit messy especially when you try to cut it with the cream and fruits stuffed in the middle.
Here's how it would look like before putting another puff pastry on top.
And it's ready to eat!