Remove roast from refrigerator and allow it to stand at room temperature for one hour.
Preheat oven to 375º
Season roast with Soy sauce, black pepper and garlic powder. Rub seasonings in all over roast, including the ends.
Place roast on a rack in a pan, fatty side up.
Roast for one hour. Turn oven OFF! Leave the roast in the oven, but do NOT open the oven for 2-3 hours. I promise it will be okay! If you are using an external electric meat thermometer, do not go over 125º (temperature will rise another 10 degrees while it is resting later).
About 30-40 minutes before serving, turn oven to 375º and reheat the roast (for ~30 minutes).
Cover with foil and let stand for 15 minutes before cutting.
**The trick is not opening the oven from the time the roast is put in the oven, until it is time to serve.
Slice roast and arrange on serving platter, garnish with sprigs of fresh rosemary.
Tip: If anyone wants their meat more well done, you can dip their slice in simmering Au jus for a minute.