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two sliced double lamb chops beside rest of rack of lamb on cutting board.
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5 from 4 votes

Grilled Rack Of Lamb With Herb Garlic Marinade

Treat yourself to a succulent, tender grilled rack of lamb infused with a wonderful garlicky, herby, zesty marinade. The grill creates a beautifully charred crust while maintaining a juicy tender inside.
Prep Time5 minutes
Cook Time20 minutes
marinate and rest40 minutes
Total Time1 hour 5 minutes
Course: Main Course
Cuisine: American
Servings (change as needed): 3 -4

Ingredients

  • 1 whole rack of lamb, Note 1 1 1/4-2 lbs/570-907 grams

Rack of lamb marinade and sauce

  • 1/3 cup parsley, finely chopped
  • 2 tablespoons fresh rosemary leaves, finely chopped (or mix of thyme and rosemary)
  • 1 tablespoon Dijon mustard
  • 4 garlic cloves, finely minced
  • 1 teaspoon lemon zest
  • 2 tablespoons lemon juice
  • 1/2 teaspoon each, kosher salt and black pepper
  • 1/4 cup olive oil

Instructions

  • MAKE MARINADE/SAUCE; Whisk together all lamb marinade ingredients in a small bowl - or place in sealed container and shake well to combine. See alternative and shortcut Note 2.
  • PREPARE AND MARINATE LAMB: Trim excess fat on rack of lamb if needed to about 1/8 inch (3 mm) or slightly more. French bones if desired and needed, Note 3.
    Brush half the herb marinade all over lamb. Let it sit on counter 30-45 minutes to bring to room temperature an marinate at the same time. Cover exposed bones with a piece of aluminum foil to avoid burning them.
  • PREPARE GAS GRILL while lamb is marinating. Heat to medium-high heat, about 450F/232C. Clean grills and spray with oil.
  • GRILL RACK OF LAMB:
    °Place lamb rack, fat side down on hot grill. Insert temperature probe if you have one. Grill for 4-5 minutes, turning to the bone side halfway through until nice crust forms. Remove foil.
    °Turn burner off under lamb and turn down heat of other grills so that temperature of BBQ is about 350F/177C. Continue to cook lamb on indirect heat for 10-15 minutes or until it reach 5 degrees f less than your desired doneness - it will rise further when resting - Note 4. Check temperature with an instant-read thermometer if you don't have a probe. Transfer to cutting board.
  • REST and SERVE: Let lamb rest for 8-10 minutes to retain juices in meat. Important!. Slice rack with a sharp knife into double or single chops between the bones and serve with remaining marinade/sauce.

Notes

  1. Type of lamb to buy: A rack of lamb is usually 8-9 bones and ranges in weight from from 10-34 ounces (0.6-2.0 pounds) in weight. It can be frozen or fresh. Experiment to find your preference:
    • American lamb racks are larger, less gamey tasting, tender, slightly sweeter, grain-fed and milder in flavor.
    • Australian lamb is medium-sized, has a stronger, gamier taste, and is mostly grass-fed (with some grain-fed now).
    • New Zealand racks are the smallest, grass-fed, robust flavor, firmer texture, rich and full-flavored, tender and leanest.
  2. Alternative and shortcut for marinade/seasoning: You can skip marinating the lamb if you don't have time. The meat won't be as flavorful, but if you serve a sauce or condiment with the meat, it will be just fine. Instead, spread a thin layer of Dijon or prepared mustard all over the lamb and sprinkle with salt, pepper, garlic powder and rosemary. 
  3. French rack of lamb: Rack of lamb often comes with the rib bones already frenched which means that the ends of the bones are stripped of all meat and fat making for a lovely presentation (as pictured). You can ask the butcher to do it or french the rack of lamb yourself.
  4. Degree of doneness for lamb:
    • medium rare - internal temperature is 125-130°F (52-55°C). The meat will be warm pink/reddish, juicy and tender.
    • medium - a pink center - the temperature should be about 140-145°F (60-63°C).
    • medium well and well done: Increase the internal temperature by 5-10 degree - this will create firmer and less juicy meat with no pink.
  5. Make ahead: Cooking, slicing and reheating the lamb ahead is not a great idea. It will easily overcook and change texture. Here are some make-ahead things you can do: 
    • Marinate the lamb for 30-45 minutes ahead while it comes to room temperature. If you want to prepare the lamb several hours ahead, marinate it in the fridge and leave out the lemon juice as it will start to 'cook' the lamb.
    • Grill the lamb up to 30-45 minutes ahead of time. Loosely cover the lamb with aluminum foil and let it sit at room temperature. This will keep it warm.
    • Store leftovers in an airtight container. I find the best way to reheat it is covered in the microwave for a minute or so on medium power. Add extra seconds if needed.
 
Nutrition values are estimates that include approximately 3 small marinated single chops or one-third of a 1 1/4 lb rack of lamb. Values and portions would be higher if only serving two people.
Calories: 312kcal | Carbohydrates: 3g | Protein: 17g | Fat: 26g | Saturated Fat: 5g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 16g | Cholesterol: 54mg | Sodium: 506mg | Potassium: 296mg | Fiber: 1g | Sugar: 0.4g | Vitamin A: 605IU | Vitamin C: 15mg | Calcium: 35mg | Iron: 2mg