PRIME RIB Roast
All you need is a bone in rib eye, soft butter, Kosher salt, and your choice of spices. I used Herbes De Provence, a mixture of dried herbs. This mixture typically contains savory, marjoram, rosemary, thyme, oregano, and much more.
It is very important that your roast is at room temperature before cooking, in order for this process to work.
Take the exact weight from the store label and multiply it by 5 min and round up, this will be your cooking time at 500 degrees. Then when your timer rings, turn your oven off DO NOT OPEN THE OVEN, leave the roast in for another 2 hours. It will slowly cook the meat.
I used a 7.430 pounds roast x 5 minutes = 37.15. I cooked it for 38 minutes at 500 degrees. Then I turned off oven and left the roast in the oven.
I use a meat thermometer as a back up and I removed my roast when it reached 140 degrees or about 1.5 hours ( 125 degrees for medium-rare).