[martyup]

I’ll do a prime rib for Christmas sometimes  ( either that or a leg of lamb).  If you have a good oven, the easiest way (it comes out perfect every time) to cook a prime rib is to put a room temperature roast in a 500° oven for 5 minutes per pound. Then turn the oven off and let it sit in the oven for exactly 2 more hours. You cannot open the door. I swear it comes out a perfect medium rare to slightly rare every single time. 

Lex it was my great grandmother who took my family in the 50s. 

Love prime rib for either thanksgiving or Christmas

That is the only way I will cook prime rib (or any premium meat roast).  Comes out with perfectly consistent doneness from center to edge.  The 5 minute number and/or the two hour number are subject to slight experimentation depending on how you like your meat.

d

It also depends on your elevation.

[martyup]

I’ll do a prime rib for Christmas sometimes  ( either that or a leg of lamb).  If you have a good oven, the easiest way (it comes out perfect every time) to cook a prime rib is to put a room temperature roast in a 500° oven for 5 minutes per pound. Then turn the oven off and let it sit in the oven for exactly 2 more hours. You cannot open the door. I swear it comes out a perfect medium rare to slightly rare every single time. 

Lex it was my great grandmother who took my family in the 50s. 

Love prime rib for either thanksgiving or Christmas

That is the only way I will cook prime rib (or any premium meat roast).  Comes out with perfectly consistent doneness from center to edge.  The 5 minute number and/or the two hour number are subject to slight experimentation depending on how you like your meat.

d

It also depends on your elevation.