The World's Most Expensive Cheese Comes From Donkeys
Pule, which tastes like rich manchego, is made from the milk of Balkan donkeys.

Pule Party: The World’s Most Expensive Cheese - culture: the word on cheese
Donkey's milk cheese is considered to be the most expensive and indulgent dairy in the world, beating out cheese made with real gold.

Pule Cheese: The Most Expensive Cheese in the World - My Fermented Foods
Pule cheese is made from donkey milk and is the most expensive cheese in the world. Pule cheese is very rare and only grown in one location.