The main ingredient in traditional tzatziki is strained yogurt, preferably Greek yogurt, which provides a thick and creamy base. Tzatziki is a popular Greek condiment and dip known for its refreshing taste, often enjoyed with pita bread, grilled meats, or as part of a mezze platter. To prepare tzatziki, the yogurt is typically mixed with grated cucumber, garlic, olive oil, lemon juice, and an assortment of herbs, such as dill or mint. The result is a cool, flavorful dip that balances the tanginess of yogurt with the refreshing crunch of cucumber, making it a staple in Mediterranean cuisine.