in United States cooking is a vinaigrette-type
salad dressing consisting of an emulsion of water, oil,
vinegar or lemon
peppers, and a variety of herbs and spices including garlic,
fennel, and dill.
It is often bought bottled, or prepared by mixing oil and
vinegar with a packaged flavoring mix consisting of
dehydrated vegetables and herbs.
Italian dressing is unknown in Italy. Salad is normally
dressed at table with olive
and sometimes black
pepper, and not with a pre-mixed vinaigrette.