Vinaigrette is a classic salad dressing made by emulsifying oil and vinegar along with other flavorings. It typically consists of a combination of oil (such as olive oil), vinegar (such as balsamic vinegar or red wine vinegar), and seasonings such as Dijon mustard, garlic, herbs, salt, and pepper. Vinaigrettes can be customized with various ingredients to add complexity and flavor, such as honey, citrus juice, shallots, or fresh herbs. They are versatile and can be used on a variety of salads, from simple green salads to more elaborate combinations.