Tzatziki sauce has a unique and distinctive flavor from its combination of ingredients. The base of Greek yogurt provides a creamy and slightly tangy flavor. The minced garlic brings a bold and savory kick to the sauce. Fresh herbs like dill or mint infuse the sauce with an herbaceous aroma and a touch of earthiness. And the olive oil adds a rich and slightly fruity undertone, enhancing the overall flavor profile and smoothing out the texture. The combination of these flavors creates a harmonious and complex profile that's simultaneously creamy, tangy, fresh, and savory.