Boil water in a large saucepan, boil lobsters are (15 minutes). If you are alive, placed headfirst into the boiling water. Chop the onion finely and fry in the oil. Repay with white wine, add broth and put to boil for about 5 minutes. Make the cream, leave 5 minutes to boil. Thicken the sauce with grated potatoes (or mashed potato powder), flavor with spices and must be slightly bitter. Cuts are shell lobsters lengthwise meat earning carefully cleaned from inside. Claws left whole or crushed and their meat is removed, as covered with cloth and knocking the handle of a knife. The shells are retained. The meat is cut into uniform pieces, fry in sunflower oil, add truffles fine washers. Fry a few minutes Season with salt and white pepper. Meat back into their shells. Lobsters pour the sauce and roasted on a grill. Serve hot, with Potatoes in ducal . * For those who can not to decide to put a live lobster in boiling water can be used frozen, although there is a loss of quality.