you need to use a meat therometer to check temp for bigger size roast cook same time first round and leave standing then i would add 5 minutes per pound over the 5 pound roast...i like mine rare so when did the 5 pound one only added the 30 minutes and it was perfect. so for an 8 pound i would do the the 45 minutes extra before serving..so for the 15 pound i would check after the 45 minutes to see watch interal temp is..rare is 140 medium is 160 and well is 170 and please remember cooks more after its taken out of oven. also more rare toward center so might be able to feed ever one different from rare to well..hope this helped

By missy on February 15, 2012

Amazing!!!!!!! Had an unforgettable taste of mouth watering flavors!!!! Thanks! Paula! My friends cooked it and there are no words that can give justice to such a delecios meal!!! Love Jose

By JOSE J. CANCHICA on January 23, 2012

This was absolutely the best standing rib roast I've ever eaten. It was so phenomenal made the evening with friends so special. Everyone loved it.

By Jessica on January 16, 2012

This was the absolute best prime rib I have ever had. I have had many prime rib dinners in eclusive restaurants, and this beats them all. Follow directions exactly... Love it...

By Rochelle Cox on January 03, 2012

I fixed the Standing Rib Roast night. I fowwlowed to directions exactly, Arter leavinf the oven off for the sugested time and turned the oven back on, I thought I was to use the 475 deg. for the additional time to warm. The house smoked up so much it set off the fire alarm. What did I do wrong?

By Cynthia on December 29, 2011

Same question here. I have a 9lb roast, what is the cook time please. Need for NYE! Thanks

By Donna Burrows on December 29, 2011

Paula, I made this for Christmas dinner this year and it was phenomenal! I was so afraid that this wouldn't turn out & was scared to death that I was gonna ruin a $40 roast. It was so hard not to peek in the oven. It made my whole house smell good for 2 days. I should've just trusted you!!

By Rachel on December 28, 2011

Best roast ever! Thank you !

By Barb Vanderweele on December 26, 2011

Are questions about cooking times ever answered? I have an 8 pound roast. Thank you.

By Kathie on December 24, 2011

I have tried this recipe before it is fantastic, the only thing about this site is there are alot of questions but no answers!!!, I would also like to know about temp. change for a larger roast, I have a 10-11 lbs roast. Thank you. Heather in Alaska

By Heather on December 24, 2011

Ihave a 7 3/4 lb roast that I would like medium rare. How long to I leave it in the oven after it reaches 375? To I let it rest after that? Thank you.

By marlene on December 24, 2011

I have a 9.5 rib roast and a gas stove, wondering how long to cook and if same temp, and when you turn oven on again do you time it from when you turn it on or from when it heats up? Thanks Kim

By Kim on December 24, 2011

I am making the standing rib roast. How long do I cook the roast if it's 8lbs?

By marian hodges on December 23, 2011

We are getting a 14 lb rib roast. How do I adjust the cooking time?

By lynn marietta on December 23, 2011

I am making this for the first time. Can I open the oven long enough to add potatoes and carrots to roast with the meat?? Thanks!

By Sheila on December 22, 2011

I am going to try this for the first time. My question is this: Can I open the oven long enough to put in some potatoes/carrots to roast with the meat? Thanks!

By Sheila on December 22, 2011

We are fixing your foolproof standing rib roast for Christmas dinner with our children however I am fixing a 15 lb roast. How do I need to alter the cook time? thank you for your help

By Diane Daubs on December 22, 2011

I am buying a 10lb standing rib roast. I am going to follow your directions to a tee BUT my question is...When I turn the oven back to 375 for the second heating, do I cook it 30-45 minutes AFTER it gets to 375 or do I set the timer for 30-45 minutes WHILE it is heating to 375? Thanks!

By janice on December 22, 2011

Just a suggestion... It would be more helpful if you also listed cooking times by pounds. How long for a 10lb roast? Thanks

By Bert on December 21, 2011

Does anyone know...same time for smaller roasts? ie: 3-4 pound? From the comments, looks like same time for larger roasts, but will doing it the same for a smaller roast over cook it?

By Marti Arndt on December 21, 2011