Bulgarian feta, known locally as Sirene, is a white brined cheese traditionally made from sheep’s milk, though cow’s or goat’s milk can also be used. It has a characteristically creamy, sometimes crumbly, and less salty flavor than its Greek counterpart, often sold in large blocks and submersed in brine to keep it young and fresh.Bulgarian feta is a popular ingredient in cooking, suitable for salads, pies, and served as a side with various dishes