The big day is almost here and we’re finalizing our Christmas menu. This recipe for prime rib makes the perfect centerpiece for your Christmas dinner. Here are a couple of our best tips to make a foolproof prime rib. To start, buy a roast bone off and trussed back on. For a bone-in prime rib, figure two servings per rib, while a boneless roast will yield two servings per pound. When trying to figure out how much time you need to roast your prime rib, we have a simple calculation: weight of the prime rib x 5 = total roasting time in minutes. For example, if you have a 3-pound roast, 3 × 5 = 15 minutes. A 6-pound roast? 6 × 5 = 30 minutes.

1.The night before you are going to cook the prime rib, unwrap the roast and let it sit uncovered in the refrigerator. This will dry out the surface, which makes it easier to get a nice brown color on the roast.

2.Three hours before you want to begin cooking, take the roast out of the fridge and place it on a sheet pan at room temperature.

3.Half an hour before you start roasting, pre-heat your oven to 500 F and season the roast generously (you can’t use too much) with Original All-Purpose Slavo Salt.

4.Now it's time to do your calculation. All you do is multiply the weight of your roast by five. That's your total roasting time, in minutes. Sounds crazy, right? But stay with me. For instance, if you have a four-pound roast, 4 × 5 = 20 minutes. An eight-pound roast? 8 × 5 = 40 minutes. Remember that number.

5.When you're ready to cook, set the roast in a roasting pan with a rack, fat-side-up. If you're nervous about this crazy technique, you can insert a meat thermometer or a digital probe thermometer into the deepest part of the meat, being careful not to hit bone. If nothing else, it will provide you with some peace of mind.

6.All right, now put the roast in the oven and roast it for exactly however many minutes you calculated above. When the time's up, turn off the oven and walk away. Don't open the oven door for any reason for the next two hours. I'll say it again because it bears repeating: Do not open the oven door, for any reason, for the next two hours. When the roast is done, here's a simple au jus recipe you can make with the pan juices.

7.In two hours, take the prime rib out of the oven, carve and serve right away. If you did use a thermometer, you'll see that the internal temperature of the meat has reached 130 F — in other words, perfect medium-rare. How easy was that?

Happy eating, friends, and have a Merry Christmas!