This easy cooking method allows you to cook PERFECTLY tender boneless beef roasts (from rare to medium-well) of almost any size, as long as the roast is at least 2-1/2 to 3-inches thick. The meat should be at room temperature for best results. Pork roast cooking time of approximately 25-30 minutes per pound should register about 145-150 degrees. https://www.epicurious.com/recipes/food/views/rib-eye-roast-240785 Remove the boneless rib roast from the oven, transfer to a cutting board and tent loosely with foil 15-20 minutes. Sprinkle the top of the Cook time is based on the weight of each roast and desired doneness. I've used this method for 30+ years, and find it's a lifesaver when I'm having company and want a foolproof entree without the fuss! A 3- to 4-pound boneless prime rib roast, sometimes called a rib-eye roast, is the same amount of beef you'd get with a 4- to 6-pound two-rib roast. Approximately 15 minutes for searing the roast prior to roasting and approximately 15 minutes for the roast to rest before serving. https://www.todaysdelight.com/how-to-slow-cook-a-ribeye-roast-in-the-oven Preheat oven to 325 degrees Fahrenheit. https://www.menshealth.com/nutrition/a19523066/prime-rib-roast We suggest planning 30 additional minutes. Below is a cooking chart for ribeye roast. Remember you should always use an instant-read thermometer to check the doneness of a roast. DIRECTIONS. 5. At 6 to 8 pounds, you're getting the equivalent of a bone-in roast that weighs 8 to 10 pounds. https://www.allrecipes.com/recipe/97621/foolproof-rib-roast If you'd rather go boneless, the roasts automatically get smaller. https://catulloprimemeats.com/blogs/recipes/5149672-pork-ribeye-roast https://www.thespruceeats.com/prime-rib-roast-slow-method-995284 In method A because a temperature of 250 degrees is used the temperature will only rise about 2-4 degrees during resting time. Place pork in roasting pan.