This recipe is one of the specialties of a famous New England inn, the Yankee Pedlar, in Holyoke, Massachusetts. Perhaps the name derives from the High Victorian architecture of the inn.
Mix butter with flour over low heat to make a smooth paste, or roux. Bring stock to boil and stir into the roux. Saute onions and mushrooms for 5 minutes. Mix with pimiento and diced chicken, and add to chicken stock. What makes an inn famousr Well, now you know!