The first step to doing this is to get a small bowl where you’ll get to stir together the butter, Worcestershire dressing, garlic, and Herbes de Provence and this will be done till they’re all well-mixed.
The next instruction is to sprinkle the salt and pepper on top of the rib roast, dabbing it into the meat.
Then, you lay out the mixed butter all over the whole roast and this can be done with the use of a pastry brush, your fingers, or a rubber spatula.
With a plastic wrap, cover the roast slackly, and then you put it into a refrigerator which you will leave there for about at least 2 hours, or probably leave it there overnight.
After that and when the prime rib is ready for cooking, you will need to heat the pellet smoker or probably pellet grill to around 225 degrees Fahrenheit. You will then remove the roast that has been in the refrigerator for at least 2 hours, then leave it to come to room temperature which should be only taken around 15 minutes.
The next thing to do is to lay down the rib roast on the grate of the heat-up smoker, then bone side down, and lastly close the lid. Till the internal temperature of the center of the roast reaches 130 degrees Fahrenheit which timeframe should be around 2 hours to 3 hours based on its side, you have to keep smoking it.
After this, you take away the prime rib from the smoker, then set it on a cutting board. You can then canvas the roast with foil and leave it for about 20 minutes before you proceed to cutting it and then serving it alongside horseradish dressing.