This section is from the book "The New Cyclopaedia of Domestic Economy, and Practical Housekeeper", by Elizabeth Fries Ellet. Also available from Amazon: The New Cyclopaedia of Domestic Economy, and Practical Housekeeper.
The truffle, like the mushroom, is a species of fungus common in France and Italy. It grows about eight or ten inches below the surface of the ground. As it imparts a most delicious flavor, it is much used in cooking. Being dug out of the earth, it requires a great deal of washing and brushing before it can be applied to culinary purposes. When washed, the water should be warm and changed frequently; it loses much of its flavor when dried.
Take ten or twelve well-cleaned truffles, put them into a stewpan on rashers of bacon, add a bay leaf, a seasoned bouquet, a little grated bacon, some slices of ham, some stock, and a bottle of champagne; cover them with a piece of buttered paper, put on the lid, and set the stewpan in hot ashes, put fire on the top, and let them stew for an hour; when done drain them on a clean cloth, and serve on a folded napkin.
After opening a fresh bottle and not requiring them all, return them into the bottle, filling up the bottle with some boiled sherry, cork them down until wanted again.
 
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