In a small bowl, combine olive oil, chopped thyme, rosemary, and crushed garlic
Rub this marinade all over the lamb rack
Place the lamb in a zip-top bag or covered dish, refrigerate for 5–6 hours (or overnight)
About 1 hour before roasting, remove lamb from the fridge to bring to room temperature
Preheat oven to 375°F
Score the fat side of the lamb, then season with salt and pepper
Wrap the rib tips in foil
Place lamb fat side up in a roasting pan. Roast for 12–13 minutes
Reduce oven to 300°F and roast for another 15 minutes or until it's cooked to your preference, when resting the temperature will increase about 10 degrees
Remove from oven, tent with foil, and let rest 10–15 minutes before slicing
Slice between ribs and serve with sauce or fresh herbs if desired