* Ideally remove from the fridge 1 hour before beginning this for best results.
Preheat oven to 450 and line a baking sheet with foil. Place a roasting rack on top of the baking sheet or alternately use a roasting pan with a rack. Place the meat, fat side up on the rack.
Mix together melted butter, rosemary leaves, thyme, salt and pepper and using a pastry brush, brush on all 3 sides of the meat.
Roast for 15 minutes. Reduce heat to 325 and roast for 1-1/2 to 1 3/4 hours or until internal temperature is 135-140 degrees.
Remove from oven and tent with foil. Let rest for 15 minutes before slicing thin and serving.
Notes
Rare (120°F - 125°F internal temperature): 15-18 minutes per pound
Medium-Rare is ideal (130°F - 135°F internal temperature): Bale for 18-20 minutes per pound.
Medium (135°F - 145°F internal temperature): Cook 20-22 minutes per pound.