Zaatar refers to a spiceblend or a mixture of savory, thyme, sumac, and sesame seeds that is prepared and available in most most Middle-Eastern groceries.
Zaziki refers to a sauce made of strained yoghurt with a mixture of cucumbers (either pureed and strained or seeded and finely diced), garlic, salt and usually olive oil, sometimes vinegar, and dill, parsley or mint.
