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.
Tomato sauce purée or fresh tomatoes, roux, garlic, salt, sugar, and pepper. Many times, butter and flour will be listed in the ingredients, but those are only used to make the roux (thickening agent). The most common use of the term tomato sauce in New Zealand and South Africa is to describe a popular, commercially produced condiment that is a type of table sauce, similar to American ketchup but without vinegar, which is typically applied to foods such as meat pies, sausages, other cooked meat (in particular steak), and fish and chips. Tomato-based sauces served with pasta would commonly be referred to