Use a chef's knife or non-serrated kitchen knife to slowly separate the lobe by following its natural line of separation. Make 30 degree angle cuts on the smaller lobe first. Each slice should be about 1/2 inches thick. Follow the same procedure with the other lobe and be sure to lay the foie gras flat on a sheet tray. Work quickly to prevent it from becoming too soft or oxidizing. Lightly score both sides of the foie gras slices in a crisscross pattern and season them with salt. Heat a very hot skillet and sear the slices for approximately 30 seconds on each side, or until you see a deep amber color and caramelization developing. The inside of the foie gras should be medium rare and barely warm.