Having prepared the mushrooms by cutting off the stalks, and if they are large, by cutting them in halves or quarters, throw them into a little boiling water, or, what is much better, stock. Do not use more than is necessary to cover them. This must be seasoned with salt, pepper, and a little butter. Boil the mushrooms until they are tender, then thicken the gravy slightly with a roux of butter and flour. Add a few drops of lemon-juice. It is now ready to pour over the meat.
Mushroom White Sauce (to serve with Boiled Fowls or with Cutlets).
Prepare the mushrooms as for garnishing; boil them tender in rich white stock, made of veal or chicken; thicken with a roux of butter and flour, and add one or two table-spoonfuls of cream.
Mushroom Sauce (made with Canned Mushrooms).
Put a piece of butter the size of a walnut into a small stew-pan or tin basin, and when it bubbles add a tea-spoonful (not heaping) of flour; when well cooked, stir in a cupful of stock (reduced and strong), and half a tea-cupful of the mushroom-juice from the can; let it simmer for a minute or two; then, after straining it, add half or three quarters of a can of mushrooms, pepper, salt, and a few drops of lemon-juice. When thoroughly hot it is ready to pour over the meat.
A Simple Bechamel Sauce.
Put butter the size of a walnut into a stew-pan, and when it bubbles stir in an even table-spoonful of flour, which cook thoroughly without letting it take color. Mix into the roux a cupful of strong hot veal stock (i. e., veal put into cold water and boiled four or five hours), a cupful of boiling cream, and one grating of nutmeg; let it simmer, stirring it well for a few minutes, then strain, and it is ready for use. The sauce would be improved if the usual soup-bunch vegetables were added to the stock while it is being made.
Bechamel Sauce.
Ingredients: One pint of veal stock (a knuckle of veal put into one gallon of cold water, boiled five hours, skimmed and strained), half an ounce of onion (quarter of a rather small one), quarter of an ounce of turnip (quarter of a turnip), one ounce of carrot (quarter of a good-sized carrot), half an ounce of parsley (two sprigs), quarter of a bay-leaf, half a sprig of thyme, three pepper-corns, half a lump of sugar, a small blade of mace.
Put one ounce (size of a walnut) of butter into a stew-pan, and when hot add to it all the above ingredients but the stock and the mace; fry this slowly until it assumes a yellow color; do not let it brown, as the sauce should be white when done; stir in now a table-spoonful (one ounce) of flour, which let cook a minute, and add the blade of mace and the stock (boiling) from another stew-pan. After it has all simmered about five minutes, strain it through a sieve without allowing the vegetables to pass through; return the strained sauce to the fire, reduce it by boiling about one-third, when add three or four table-spoonfuls of good thick cream, and the sauce is ready.