Tzatziki's main ingredient is strained yogurt, a "bag" as it is commonly called, to which grated cucumber, melted garlic, dill and a little olive oil are added.
It is served as an appetizer, mainly accompanied by grilled meats. It goes well with french fries or zucchini. It can be served, spread on bread, and as a snack for ouzo or tsipouro. Tzatziki is also a common ingredient in souvlaki with pita bread.