Pannacotta is a dessert made of cream flavored with different things. The most traditional flavor is vanilla. Here is an alternative flavoring, together with the vanilla flavor.
To make a two layered pannacotta you need to think ahead and do the first part at least 10 hours before the planned serving time. This is because it needs 3-5 hours in the fridge to stiffen before you can poor on the next layer.
You can of course chose to serve any of them as a single layer, they are then enough to serve 4. The vanilla flavored can basically be served with any fruit you like.