How To Cook Prime Rib
Learning how to cook prime rib can be very intimidating, but cook prime rib is very similar to cooking any other beef roast, but the flavor is much better than regular roast.
To cook a rib roast, you will want to start by allowing the the prime rib to reach room temperature before placing it in the oven. This will take a minimum of two hours. If it is frozen, it will take longer to cook. Next, you will want to trim the excess fat off, but be careful to leave a thin layer of fat for it to baste itself with. Then, you’ll need to pat the rib roast dry with a paper towel or napkin.
You’ll need to preheat your oven to 450 degrees. Then, you’ll need to spread butter on the cut ends of the prime rib roast. Turn the roast fat side up in a roasting pan. Your pan will need to be at least three inches deep on the sides. You will also want to be sure that your pan is sturdy enough - a heavy stainless steel pan will be best. The rib bones create a natural rack so a metal one is not needed.
Start by searing the prime rib at 450 degrees for fifteen minutes, then reduce the heat to 325 degrees for the remaining time to fully cook prime rib. Every half an hour baste the prime rib with the fat on the bottom.
Approximately thirty minutes before the end of the cooking time, you’ll need to stick a meat thermometer in the roast to check the internal temperature of the prime rib. Make sure to stick the thermometer into the thickest part of the meat, not into the fat or near the bone.
Once an internal temperature of 120 degrees is reached, remove the roast from the oven and wrap in aluminum foil. Let it set for twenty to thirty minutes. While wrapped the prime rib will continue to cook reaching an internal temperature of 125 degrees to 130 degrees. The cooked prime rib is ready to be served and eaten.
Cooking Key:
Rib Count
Approximate Weight
Oven Temperature
Total Estimated Time
Meat Thermometer Reading (Rare)
2 ribs
4 to 5 pounds
450°/325° F
60 to 70 minutes
120° F
3 ribs
7 to 8.5 pounds
450°/325° F
1 1/2 to 1 3/4 hours
120° F
4 ribs
9 to 10.5 pounds
450°/325° F
1 3/4 to 2 1/4 hours
120° F
5 ribs
11 to 13.5 pounds
450°/325° F
2 1/4 to 2 3/4 hours
120° F
6 ribs
14 to 16 pounds
450°/325° F
3 to 3 1/4 hours
120° F
7 ribs
16 to 18.5 pounds
450°/325° F
3 1/4 to 4 hours
120° F
To carve the cooked prime rib, you will want to use a long, thin sharp knife. First, use the knife to cut off the feather bones, these bones are the large end bones. Then, slice off large steak size pieces with the desired thickness. Prime rib cooking isn’t intimidating once you know how.
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Tags: cooking, cooking
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