But on the dairy side of the spectrum, there's an unusual milk that is the most expensive in the world -- and it doesn't come from a cow, a sheep, or a goat. This scarce and valuable product comes ...

Slobodan Simić: This milk is only consumed unboiled ... More from Retail Narrator: Pule donkey cheese is the most expensive cheese in the world. Produced by only one farm in the world, pule ...

Selling for just under $2,000 per kilo, 'Pule' donkey cheese made on a nature reserve in Western Serbia is the world's most expensive cheese ... Balkan donkeys whose milk makes for some extremely ...