
This oven-roasted rack of lamb is infused with a fragrant rosemary garlic marinade, seared for a golden crust, and finished with buttery pan juices. It is an elegant yet approachable main dish for a special dinner, holiday meal, or impressive weekend roast.
Make the marinade by combining the garlic, 1 tbsp fresh rosemary, extra-virgin olive oil, salt, and black pepper in a sealable bag or shallow dish. Add the lamb racks, turn to coat thoroughly, cover or seal, and refrigerate for 24 to 48 hours.
Take the lamb out of the refrigerator about 1 hour before cooking so it loses some of its chill and roasts more evenly.
For a cleaner presentation, wrap the exposed rib bones with small pieces of foil before cooking.
Preheat the oven to 390°F (200°C), or 355°F (180°C) for a fan oven.
Heat the olive oil for searing in a heavy oven-safe skillet over high heat. Sear one rack of lamb at a time until well browned on all sides, including the ends, then transfer it to a plate.
Return both lamb racks to the skillet and place the pan in the oven. Roast for about 15 minutes, or until the thickest part reaches 135°F (57°C) for medium-rare.
Remove the skillet from the oven. Add the butter and remaining rosemary to the hot pan, then spoon the melted butter and pan juices over the lamb for about 30 seconds.
Transfer the lamb to a rack set over a tray or to a warm plate. Spoon over any remaining butter from the skillet, tent loosely with foil, and let it rest for 5 minutes.
Slice between the bones into individual lamb cutlets, or carve into larger portions if preferred. Serve warm with salsa verde.
Use an instant-read thermometer for the most reliable doneness, since rack thickness can vary. Avoid overcooking the lamb during searing; the goal is a browned crust before the oven finish. Leftover cooked lamb can be refrigerated in an airtight container for up to 3 days and reheated gently to keep it tender.





