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.
Vinaigrette China and Japan, a similar salad dressing is made with sesame oil/sesame paste and rice vinegar. In north China, sometimes mustard is added to enhance the flavor and texture of the sauce. Different vinegars, such as raspberry, create different flavors, and lemon juice or alcohol, such as sherry, may be used instead of vinegar. Balsamic vinaigrette is made by adding a small amount of balsamic vinegar to a simple vinaigrette of olive oil and wine vinegar. In Brazil, a mix between olive oil, alcohol vinegar, tomatoes, onions and sometimes bell peppers is called "vinagrete". It is served on Brazilian churrasco,