Here’s the easiest method: salt it heavily the night before. Let it sit in the fridge uncovered. This dries the surface, which means better crust. You’re welcome.
Then roast it at 250°F (120°C) until it hits about 120°F internally for medium-rare. Rest it for 20 minutes—yes, longer than you think. Then blast it at 500°F for 10 minutes to get that glorious brown crust.
A Definitive Guide to Beef Cut Sheets — BARN2DOOR
Pro tip: save the drippings for au jus. Dip your meat in its own fancy bath. It’s like a spa day for beef.