Olivier salad the dressing — was a jealously guarded secret, but it is known that the salad contained grouse, veal tongue, caviar, lettuce, crayfish tails, capers, and smoked duck, although it is possible that the recipe was varied seasonally. The original Olivier dressing was a type of mayonnaise, made with French wine vinegar, mustard, and Provençal olive oil; its exact recipe, however, remains unknown. At the turn of the 20th century, one of Olivier's sous-chefs, Ivan Ivanov, attempted to steal the recipe. While preparing the dressing one evening in solitude, as was his custom, Olivier was suddenly called away on some emergency.
Apple cider vinegar Apple cider vinegar Apple cider vinegar, a vinegar made from fermented apple juice, is used in salad dressings, marinades, vinaigrettes, food preservatives, and chutneys. It is made by first crushing apples and squeezing out the liquid. Bacteria and yeast are then added to the liquid to start the alcoholic fermentation process, and the sugars are turned into alcohol. In a second fermentation step, the alcohol is converted into vinegar by acetic acid-forming bacteria ("Acetobacter" species). Acetic acid and malic acid are what give vinegar its sour taste. Apple cider vinegar has no nutritional value, aside from some calories, with all