Any size oven roast
Pepper
Garlic powder

Place roast on roasting rack in a metal pan. Sprinkle garlic powder and pepper over roast. Cook in preheated oven at 375 degrees for 1 hour. Turn oven off. Do not open door. Later, an hour and 10 minutes before dinner is to be served, turn oven to 300 degrees for 55 minutes. Remove roast from oven. Let stand for 15 minutes, then slice. You will have a perfect medium roast.

Minimum preparation time, including cooking and standing is 2 hours and 10 minutes.