Xynomizithra or xynomyzithra (greek: ξινομυζήθρα) is a greek whey cheese with some added milk; it is a sour variant of mizithra, and made from ewes' and/or goats' milk. the proportion of full-cream milk is about 15%. it is mainly produced on the island of crete but other areas in greece also produce it. xynomyzithra kritis (xynomizithra of crete) is a european protected designation of origin.

Source: Wikipedia