My family recipe:
Prime Rib (can be roast beef as well)
Ingredients
1 Prime/Choice Rib
1tb chopped garlic
2tb fresh basil
2tb fresh oregano
2tb fresh rosemary
4tb+ olive oil
1tb kosher salt
1tb ground pepper
Directions
Preheat oven to 500f
Mix non-meat ingredients together and apply to meat
Roast at 500f for X minutes per lb, then turn oven off and let sit for 2 hours, remove, slice
X = 5 minutes for rare
X = 6 minutes for medium
X = 7 minutes for well done
I've done prime rib both ways and reverse sear (low cook temp, rest, 500 for 10 min to brown) resulted in a much less gray banding. My stepdad did 500*X min for years and it's still good, you just get more uniformly cooked meat with reverse sear.
That's the Kenji way. Dry brine reverse sear is how I do most meat these days. Smaller cuts get seared in a pan, roasts and prime rib get blasted under a preheated broiler as high as my oven will go. And yes, always use a thermometer.