This is a very old recipe. Thus it was cooking truffles flambait when a large fire in the chimney farmers. The green oak (yeuse) was the wood is best suited for a perfect coals.
It takes about 100g of fresh truffles (4 truffles), 4 small slices of salt, salt.
Wrap truffles with small slices of salt. Wrap in foil and place beside the hearth. Cover them with coals and then cover the whole of ash to keep a permanent heat. Let simmer ½ hour and taste.
If you do not have a fireplace,
Put aluminum wrapped truffles in a dish, cover with coarse salt and let cook for about 1 hour at 200 degrees.