Vinaigrettes are often distinguished by the type of vinegar used in the dressingbalsamic vinaigrette, red wine vinaigrette, etc. But they can also be differentiated by the oil used, as well as its seasonings. In this italian vinaigrette, for example, the main difference between it and the basic vinaigrette it closely resembles is that this recipe is made with olive oil rather than ordinary vegetable oil. And the fact that it includes oregano, parsley, and garlic, three quintessentially italian ingredients, also contributes to its name.