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.
Non-brewed condiment constituted a false trade description. The decision was upheld on appeal to the King’s Bench Division. Mr Slater goes on to state that after the unsuccessful appeal the trade association concerned announced that in future their product would be sold as ‘Non-brewed condiment’. Non-brewed condiment Non-brewed condiment is a vinegar substitute created with water, acetic acid, flavourings and often caramel colour. It is sometimes used in fish and chip shops in the United Kingdom and Ireland instead of malt vinegar. It is also used in salads. Traditional vinegars are made by fermenting alcohol (wine, in the case of wine vinegar;