Ingredients
Method
- Preheat oven to 450°F (230°C). Pat the roast dry, place fat-side up in a roasting pan, and press the combined rub (salt, pepper, garlic powder, onion powder, smoked paprika, thyme, and olive oil) firmly all over the surface. Tuck the rosemary sprigs underneath.
- Roast uncovered at 450°F (230°C) for 20 minutes until the outside is browned and a crust begins to form.
- Reduce oven temperature to 325°F (160°C) and continue roasting until the internal temperature is 5°F (3°C) below your target, about 1 hour 30 minutes to 2 hours for medium-rare at 130°F (54°C).
- Pull the roast from the oven and immediately press the 2 tbsp softened butter over the top; let it melt into the crust for 2 minutes.
- Tent loosely with foil and rest for 20 minutes, then carve against the bone into 3/4-inch slices and serve on a warm platter with pan drippings spooned over the top and a sprig of roasted rosemary alongside.
Notes
Pull the roast from the fridge about 45 minutes before it goes in the oven. A leave-in probe thermometer is the most reliable way to track doneness without opening the oven repeatedly. The rest period is not optional; cutting into the roast early will send the juices straight onto the cutting board instead of staying in the meat.
