This deliciously creamy pastry originates from Lake Bled in Slovenia. It's a pretty straight forward recipe but does require quite a few steps and some forethought as it needs time to set in the fridge. Similar pastries are eaten around the world. It particularly reminds me of a vanilla slice in the UK, which is one of my favourites. Two layers of crisp, buttery pastry filled with a set vanilla custard and fresh cream.