ZA'ATAR (ZAHATAR ,ZAHTAR , ZATAAR or ZAATAR) is a Middle Eastern blend. Each country has its own variation, but generally it contains: THYME, SUMAC, ROASTED SESAME SEEDS.
It is herbaceous and sour and earthy and nutty.
Za'atar is used as a condiment to sprinkle on grilled pita with olive oil or on salads. You can also use it in soups and it works well on grilled fish.