• In a small bowl, mix olive oil (or butter), minced garlic, rosemary, thyme, salt, pepper, and onion powder.
• Rub this mixture evenly over the entire roast.
• Preheat to 475°F (245°C).
• Place the roast, fat side up, on a rack in a roasting pan.
• Roast uncovered for 20–25 minutes to form a flavorful crust.
• Reduce oven temperature to 325°F (165°C) and continue roasting:
• Medium-rare: 15–16 minutes per pound (internal temp: 130°F / 54°C)
• Medium: 17–18 minutes per pound (internal temp: 140°F / 60°C)
• Remove from oven, tent loosely with foil, and let it rest 20–30 minutes.
• This allows the juices to redistribute.
• Slice against the grain and serve with au jus or horseradish cream.