Verte Sauce

An emulsion sauce made with mayonnaise as the base that is colored green with various other ingredients. Made to be served as a cold sauce, Verte Sauce or Sauce Verte as it is also known is often used as a condiment for fish and potato dishes. It is made by combining mayonnaise with the juice of herbs such as parsley and fresh spinach that are pureed together, giving the sauce a green or "verte" appearance. As versions of recipes evolve, the ingredients for this sauce have changed so that the Sauce Verte may include the juice as well as tiny bits of the spinach and herbs such as chervil, parsley, tarragon, and watercress.