Pule cheese
Pule cheese or magareći sir, is a Serbian donkey cheese made from 60% of donkey milk of Balkan donkeys and 40% of goat milk.
Pule is produced in Zasavica Nature Reserve by the idea of Slobodan Simić, former MP Serbian and Zasavica Special Nature Reserve Manager.
A distinctive dairy product of Serbian cuisine, pule is reportedly the "world's most expensive cheese", fetching 1,000 Euros per kilogram. It is so expensive because of its rarity: there are only about 100 jennies in the landrace of Balkan donkeys that are milked for Pule-making and it takes 25 litres of milk to create one kilogram of cheese.