Rub the salt and pepper into all sides of the roast, including the top fat. Place a heavy skillet over high heat and as it is warming up, place the roast in the skillet, fat side down. The heat will render enough fat for browning the rest of the roast without sticking. When there is enough fat to coat the bottom of the pan well and the fat on the roast is turning golden brown, flip the roast over and brown the next side.