fumet

/ˈfjuːmɛt/
noun
  1. A concentrated stock made from fish, meat, or vegetables, used to add flavor to sauces and soups.
    • The chef added a spoonful of fish fumet to the sauce for extra depth.
    • A good mushroom fumet can elevate a simple broth.
    • She simmered the chicken bones to make a rich fumet.