Smother the beef, using a Filet for this delicious dish according to the recipe given for Smothered Beefsteak. After it has cooked about a half hour, add one can of Mushrooms and let it continue to simmer gently for an hour and a half longer. When ready to serve, add, if possible, a gill or a small wineglass of Sherry or White Wine; boil ten minutes longer. Put the Filet in a dish, place the Mushrooms over and around as a garnish, pour over the sauce and serve.
If Truffles are used instead of the Mushrooms, add one-half can, and proceed in exactly the same manner as when using the Mushrooms.