Let the rib roast sit out for 30 minutes to take the chill off then rub it with 1 tbsp of olive oil and the salt and pepper mix
Place the rib roast on your sheet tray or roasting pan, bone down, and roast for 25 minutes
Remove the rib roast from the oven and turn the temp down to 350°F. Rub the Dijon mix all over the rib roast being careful not to burn yourself then place it back in the oven for an additional 1 hour 30 minutes.