Yogurt sauce, a sweet or savory flavored yogurt preparation is an irresistible accompaniment to many snack and main course recipes. Spiced up with salt, pepper and seasonings, the yogurt sauce is fondly eaten with rice, breads or noodles. Cucumber, carrots, nuts, cilantro, celery, cumin and other spices help in enhancing the flavor of the basic yogurt sauce. An easily prepared recipe, yogurt sauce is best relished fresh and chilled.