duxellesPronunciation: /ˈdʌks(ə)lz, dʊksɛl/Definition of duxelles noun [mass noun] a preparation of mushrooms sautéed with onions, shallots, garlic, and parsley and used to make stuffing or sauce. Origin:named after the Marquis d'Uxelles, a 17th-century French noblemanduxelles in other Oxford dictionaries Definition of duxelles in the US English dictionary