Remove the roast from all packaging and give it a good rinse.
Pat it completely dry with paper towels.
Wrap the roast in three layers of cheesecloth to help with the aging process.
Place the wrapped roast on a rack set on a sheet pan.
Make sure the fat side is facing up as it ages in the back of the refrigerator.
Leave it undisturbed for about 10 days to allow flavors to fully develop.
When you're ready to cook, preheat your oven to 450°F.
Mix thyme, rosemary, pepper, garlic, onion, salt, and coriander with olive oil to make a flavorful herb rub.
Use your hands to coat the roast evenly.
Arrange the carrots and onions in your roasting pan.
Position the herb-coated roast on top of the vegetables.
Pour the water into the pan to keep the roast moist as it cooks.
Roast at 450°F for roughly 20 minutes to create a crispy crust.
Then lower the oven temperature to 325°F and continue cooking until desired doneness is reached.
Let the meat rest before carving to let the juices redistribute.