Leave meat out of the refrigerator for 2 hours before cooking. Preheat oven to 375. Place roast in shallow roasting pan, rib side down, fat side up. Season with salt and pepper (OR optional rub). Place in preheated 375 oven for 1 hour. DO NOT OPEN THE DOOR EVER! Turn off oven. (I usually do this around 11 in the morning, but you must have at least 3 hours before second cooking
Second cooking: Before serving, turn oven on again to 375 (don't open the door!) and cook for 40 minutes. If roast is particularly small, cook only 35 minutes. Roast is medium rare every time. Let meat rest for 10-15 minutes before removing ribs and carving.
Allow 1 rib for every 2-2 1/2 persons.
Fennel-Coriander Rub:
In a dry 10-inch skillet, toast seeds and peppercorns until lightly browned and fragrant. Remove and cool. Once cool, add salt and grind to a powder. Store in glass jar. You will have some left for another use.