How long do you cook a frozen prime rib roast for?

I can't tell you exactly how long to cook a frozen prime rib roast. That depends on several factors:

* Size of the roast: A larger roast will take longer to cook than a smaller one.

* Desired doneness: Do you want it rare, medium-rare, medium, or well-done? Each level of doneness requires a different cooking time.

* Cooking method: Roasting in the oven, slow cooking, or grilling will each have different cook times.

However, I can give you some general guidelines:

* Always thaw the roast completely before cooking. This ensures even cooking. You can thaw in the refrigerator, in cold water, or using a microwave's defrost setting.

* Use a meat thermometer: This is the most accurate way to ensure the roast is cooked to your liking.

* Allow for resting time: After cooking, let the roast rest for at least 15 minutes before carving. This will allow the juices to redistribute, resulting in a more tender and flavorful roast.

Here are some resources that can help you with specific cooking times:

* Your recipe: Many recipes for prime rib will provide specific cooking times and temperatures based on the roast's size and desired doneness.

* Online cooking calculators: There are numerous websites that have prime rib cooking time calculators.

* Your oven's manual: Some ovens have built-in cooking guides that can help with roast times.

Remember: Always check the internal temperature of the roast to ensure it is cooked to your liking. Enjoy your delicious prime rib!