Mrs. C. F. Leyel and Miss Olga Hartley published their delightful The Gentle Art of Cookery, from which this recipe comes, in 1925. On mushrooms, the authors write that if red mullet are the woodcocks of the sea because of their delicate taste, then mushrooms might be called the oysters of the fields, for no other food has the same rare flavor of these elfin-like mys