Double (or Pair of Legs) of Lamb

Ingredients

Equipment Needed

• •5 to 6-quart heavy oval Dutch oven with a close-fitting lid
• •Butcher’s twine
• •Instant-read or probe thermometer
• •Fine-mesh sieve
• •Small saucepan and warmed sauceboat

Instructions

1. 1

   Shape the double joint

   Lay the lamb legs cut-side together with their fat caps facing outward. Point the thick end of one toward the narrow end of the other so the assembled roast has an even thickness from end to end. Tie firmly with butcher’s twine at 1-inch (2.5 cm) intervals, then run one loop lengthwise to keep the ends tucked. Season with 2 teaspoons of the salt and ¾ teaspoon of the pepper, and leave at room temperature for 45 minutes. A loose or lopsided joint cooks unevenly, so retie it now if it sags; this is easier than negotiating with two different temperatures later.

   Ask the butcher for two small boneless legs of nearly equal weight. Keep the fat caps, because they protect the doubled joint and enrich the basting juices.
2. 2

   Colour it in butter

   Heat the oven to 325°F (165°C). Melt 2 tablespoons of the butter in a heavy covered Dutch oven over medium heat. When the foam subsides, add the lamb and brown it patiently on every accessible surface, turning with tongs, for 8 to 10 minutes. You want deep Maillard bronze, not blackened milk solids. If the butter scorches before the lamb colours, lift out the joint, discard the burnt fat, wipe the pot, and continue with 1 tablespoon of the reserved butter over lower heat. Ça se rattrape.

3. 3

   Poêler under cover

   Lift the lamb briefly and spread the onion, carrot, and bouquet garni across the pot floor. Return the joint, dot it with the remaining butter, and close the lid tightly. Place the pot in the oven for 45 minutes, basting every 15 minutes with the butter and lamb juices collecting beneath it. Roll the joint once halfway through. Add no stock, wine, or water. If the pot looks dry, lower the oven by 25°F (15°C) and spoon the melted butter carefully over the meat; the joint must be moistened by its own seasoned gravy, not boiled in somebody else’s.

4. 4

   Finish and rest

   Remove the lid and raise the oven to 400°F (205°C). Continue roasting for 15 to 25 minutes, basting twice, until the surface is burnished and the centre reaches 140°F (60°C). If the colour arrives before the temperature, set the lid loosely over the pot and return the oven to 325°F (165°C). If the centre is ready while the surface remains pale, give the roast 1 to 2 watched minutes beneath the broiler, the home equivalent of the salamander. Transfer the joint to a warm platter, cover loosely with foil, and rest for 20 minutes; its centre should rise to about 145°F (63°C).

5. 5

   Bind the clear gravy

   While the lamb rests, spoon excess fat from the pot without disturbing the brown fond. Add the boiling water, set the pot over medium heat, and scrape until every savoury brown deposit has dissolved. Simmer for 5 minutes, pressing the onion and carrot lightly, then strain into a small saucepan. Add every drop of resting juice from the platter and skim again. Mix the fécule with the cold water, bring the gravy to a gentle simmer, and whisk in enough slurry to give it the lightest nappe, coating a spoon while remaining clear. Season with the remaining salt and pepper. If it tightens too far, loosen it with boiling water; if it clumps, strain it and return it briefly to the heat. Ça se rattrape.

6. 6

   Carve across the grain

   Remove every piece of twine and present the paired joint whole before carving. Follow the natural seam between the legs and cut each across its own grain into slices about ⅜ inch (1 cm) thick; sawing indiscriminately through both makes one half tender and the other stubborn. Arrange the slices on the warm platter, spoon over just enough clear gravy to make them gleam, and send the rest to the table in a warmed sauceboat. À table!

Chef Tips

• •Two small boneless legs are the honest home equivalent of the enormous attached double joint. Do not substitute thin butterflied legs, which make a broad, uneven parcel and cook too quickly at the edges.
• •Use a thermometer. A doubled joint conceals its progress, and timing alone cannot tell you whether the centre is ready. Insert the probe from one end toward the middle so it reaches the thickest part without sitting in a seam.
• •The source favors early-season or new vegetables around house lamb. Serve buttered peas, glazed young carrots, small turnips, or new potatoes alongside, but cook them separately so the covered pot remains devoted to the lamb and its gravy.
• •The gravy should shine through the sauceboat, not resemble an opaque flour sauce. Fécule gives the clear, light binding required here; add it cautiously because one spoonful too many turns elegance into paste.
• •A firm red Bordeaux or a savory northern Rhône suits the sweet lamb and peppery gravy. Pour the wine at the table, never into this pot.

Advance Preparation

• •The legs can be tied and seasoned up to 24 hours ahead. Refrigerate them uncovered so the surface dries, then bring the joint out 45 minutes before browning.
• •The onion, carrot, and bouquet garni can be prepared earlier in the day and kept covered in the refrigerator.
• •Roast the lamb shortly before serving. It tolerates its required 20-minute rest beautifully, but reheating the entire double joint sacrifices the even pink centre that poêler worked to protect.

Frequently Asked Questions

Nutrition Information

1 serving (about 340g)