2Dry brine the meat with a hefty amount of salt and pepper.
3Add a hefty amount of roasted garlic and herb.
4Put the seasoned prime rib in the fridge uncovered for 12 to 24 hours.
5Make the garlic herb butter: In a bowl, combine one stick of salted butter, grated garlic, chopped rosemary, chives, salt, pepper, and a little Dijon mustard.
6Smear the butter all over the meat.
7Tie the meat up using butcher's twine.
8Put the tied-up meat in the oven at 425°F for the first 15 minutes.
9Reduce the heat to 330°F and continue cooking for about 1 hour and a half.
10Take it out at 125°F for medium-rare.
11Transfer the meat to a new pan and cover it with foil to let it rest for about 20 minutes.
12Make the horseradish sauce by mixing sour cream, mayonnaise, horseradish, Dijon mustard, garlic, chives, salt, and pepper.
13Cut the twine off the rested prime rib.
14Serve the prime rib with the horseradish sauce and chives.