Mushroom Sauce
Have ready some excellent drawn butter, and thicken it with small button mushrooms that have been pickled. Or, take freshly-gathered mushrooms of good size, rub off the outer skin with a clean flannel, and cut off the stems close to the flaps. Wash the mushrooms in a cullender. Have ready some bits of fresh butter dredged all over with flour. Lay them among the mushrooms, (which, if very large, should be quartered,) and put them into a stew-pan. Cover the pan, and let them stew till the mushrooms are all tender. When you take off the lid to try them, replace it immediately, keeping in as much of the aroma as possible. If fresh, they will yield a great deal of juice. When done, transfer them to a sauce-tureen, and serve them up with any nice dish of meat or poultry.
The best mushrooms are found in pure open air or rather high ground, and where there is no swamp or woodland. On the upper side of their top they are not white, but of a pale grayish tint; the under side is invariably light red, pinkish, or pale salmon color, which in a few hours, or after being gathered, turns brown. The false mushrooms are poisonous. They are entirely white above and below. The fungi that grow in forests or marshes can never be mistaken for real mushrooms. They are of various colors, chiefly bright yellow and red, and originate in foul air. By boiling a silver tea-spoon with your mushrooms, you may test their goodness. If the silver turns black, throw the mushrooms away. An onion will also blacken from the same cause. Mushrooms should be cooked as soon as possible. If kept two or three days, worms will be found in them. Never give mushrooms to children. Even in their best state they are not wholesome. The taste for mushrooms is an acquired one, and it is best not to acquire it.