Store the finished za'atar in an airtight container and keep in a cool dark place. To me, it lasts indefinitely, although its potency will diminish gradually.
Za'atar Yoghurt
Mix everything together.
500 ml natural yoghurt, 1-2 Tbsp za’atar, ¼ cucumber, ½ tomato, ½ green chilli, 2-3 mint leaves
Notes
As mentioned, you can also use za'atar to marinate meat and seafood, whether to roast, cook on the stove or on the barbecue. Add some olive oil or yoghurt to turn it into a wet marinade.