Soak the truffles in the Armagnac for 1 hour. Preheat the oven to 425F. Cut out 12 rectangular pieces of foil to wrap around the truffles. Season the bacon with freshly ground pepper. Wrap a piece of bacon around each truffle. Wrap each truffle in one piece of aluminum foil, then wrap again in a second piece of aluminum foil. Place all the truffles in a shallow ovenproof dish just large enough to hold them. Cover the dish. Bake for 30 minutes. Do not uncover the dish until you are ready to serve. If the outer piece of aluminum foil is darkened, remove it, but don╒t remove the inner piece of foil.
