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Grilled Rack of Lamb on a Gas Grill

By America's Test Kitchen

Published on October 19, 2011

Time

1¼ hours

Yield

Serves 4

Grilled Rack of Lamb on a Gas Grill

Ingredients

4 teaspoons vegetable oil, divided4 teaspoons chopped fresh rosemary 2 teaspoons chopped fresh thyme 2 garlic cloves, minced2 (1½- to 1¾-pound) racks of lamb, trimmed and frenched½ teaspoon table salt ½ teaspoon pepper

Before You Begin

We prefer the milder taste and bigger size of domestic lamb, but you can substitute imported lamb from New Zealand and Australia. Since imported racks are generally smaller, follow the shorter cooking times given in the recipe. While most lamb is sold frenched (meaning part of each rib bone is exposed), chances are there will still be some extra fat between the bones. Remove the majority of this fat (see illustrations, below), leaving an inch at the top of the small eye of meat. Also, make sure that the chine bone (along the bottom of the rack) has been removed to ensure that it will be easy to cut between the ribs after cooking. Ask the butcher to do it; it’s very hard to cut off at home.

Instructions

  1. Combine 1 tablespoon oil, rosemary, thyme, and garlic in small bowl; set aside. Rub lamb with remaining 1 teaspoon oil and sprinkle with salt and pepper.
  2. Turn all burners to high; cover; and heat grill until hot, about 15 minutes. Leave primary burner on high and turn off other burner(s). Clean and oil cooking grate. Place racks, bone side up, on cooler side of grill, with meaty side of racks very close to, but not quite over, hotter side of grill. Cover and cook until meat is lightly browned, faint grill marks appear, and fat has begun to render, 8 to 10 minutes.
  3. Flip racks bone side down and slide to hotter side of grill. Cover and cook until well browned on bone side, 3 to 4 minutes. Brush racks with herb mixture; flip bone side up; and cook until well browned on meaty side, 3 to 4 minutes. Stand up racks, leaning them against each other for support, and cook until bottoms are well browned and meat registers 120 to 125 degrees (for medium-rare), 3 to 8 minutes.
  4. Transfer racks to carving board, tent with aluminum foil, and let rest for 15 to 20 minutes. Cut between ribs to separate chops and serve.

Grilled Rack of Lamb on a Gas Grill

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By America's Test Kitchen
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Time

1¼ hours

Yield

Serves 4

Ingredients

4 teaspoons vegetable oil, divided
4 teaspoons chopped fresh rosemary
2 teaspoons chopped fresh thyme
2 garlic cloves, minced
2 (1½- to 1¾-pound) racks of lamb, trimmed and frenched
½ teaspoon table salt
½ teaspoon pepper

Test Kitchen Techniques

Ingredients

4 teaspoons vegetable oil, divided
4 teaspoons chopped fresh rosemary
2 teaspoons chopped fresh thyme
2 garlic cloves, minced
2 (1½- to 1¾-pound) racks of lamb, trimmed and frenched
½ teaspoon table salt
½ teaspoon pepper

Test Kitchen Techniques

Ingredients

4 teaspoons vegetable oil, divided
4 teaspoons chopped fresh rosemary
2 teaspoons chopped fresh thyme
2 garlic cloves, minced
2 (1½- to 1¾-pound) racks of lamb, trimmed and frenched
½ teaspoon table salt
½ teaspoon pepper

Test Kitchen Techniques

Why This Recipe Works

With its juicy, pink meat; rich crust; and classic stand-up-straight presentation, rack of lamb is a bona fide showstopper—and it has the price tag to prove it. But grill this piece of meat improperly and you’ve made a very costly mistake. That’s why we wanted to come up with a foolproof technique for grilling rack of lamb—one that would deliver a great crust and flavorful, tender meat, every time. Our first challenge was choosing just the right cut. While the racks from butcher shops and high-end specialty stores cost more than those from the supermarket, they come already trimmed. And once we trimmed all the excess fat from our supermarket samples, we found that this meat wasn’t actually much cheaper. However, even the trimmed lamb needed additional butchering, both to remove the “cap” of fat that creates meat-scorching flare-ups and to trim away any excess meat and fat. (For perfect grilling results, we needed fairly lean racks of uniform thickness.) A wet rub (garlic, rosemary, thyme, and vegetable oil) was the best way to flavor the meat—marinades turned the lamb mushy, and dry rubs simply didn’t work with our grilling method. For a rich crust that wasn’t charred, we applied the wet rub during the last few minutes of grilling, keeping the surface crisp.

Before You Begin

We prefer the milder taste and bigger size of domestic lamb, but you can substitute imported lamb from New Zealand and Australia. Since imported racks are generally smaller, follow the shorter cooking times given in the recipe. While most lamb is sold frenched (meaning part of each rib bone is exposed), chances are there will still be some extra fat between the bones. Remove the majority of this fat (see illustrations, below), leaving an inch at the top of the small eye of meat. Also, make sure that the chine bone (along the bottom of the rack) has been removed to ensure that it will be easy to cut between the ribs after cooking. Ask the butcher to do it; it’s very hard to cut off at home.

Instructions

  1. Combine 1 tablespoon oil, rosemary, thyme, and garlic in small bowl; set aside. Rub lamb with remaining 1 teaspoon oil and sprinkle with salt and pepper.
  2. Turn all burners to high; cover; and heat grill until hot, about 15 minutes. Leave primary burner on high and turn off other burner(s). Clean and oil cooking grate. Place racks, bone side up, on cooler side of grill, with meaty side of racks very close to, but not quite over, hotter side of grill. Cover and cook until meat is lightly browned, faint grill marks appear, and fat has begun to render, 8 to 10 minutes.
  3. Flip racks bone side down and slide to hotter side of grill. Cover and cook until well browned on bone side, 3 to 4 minutes. Brush racks with herb mixture; flip bone side up; and cook until well browned on meaty side, 3 to 4 minutes. Stand up racks, leaning them against each other for support, and cook until bottoms are well browned and meat registers 120 to 125 degrees (for medium-rare), 3 to 8 minutes.
  4. Transfer racks to carving board, tent with aluminum foil, and let rest for 15 to 20 minutes. Cut between ribs to separate chops and serve.

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