ABOUT GREEK FETA: From week to week, there is always a recipe or two that includes the national cheese of Greece, feta. There are a few things to know about this world-class brine cheese: Greek feta is the only officially recognized feta in the EU, and thus the only one allowed to be exported legally. Greek feta is made only with sheeps’ or sheeps’ and goats’ milk and NEVER with cow’s milk. It is a PDO (Protected Designation of Origin) cheese. You can find a good selection of real Greek feta in most American supermarkets.