Preheat oven to 450 degrees. Combine salt and pepper in a smaller size bowl. With a sharp knife cut a line down into the rib roast staying 1/2" from the front to create a big pocket in order to stuff with rosemary and garlic. Sprinkle about half of the salt and pepper into the pockets and add rosemary and garlic. Make sure that the Rosemary sprig is poking out f the pocket.