Roast Lamb Dinner

Ingredients

• 1.5 kg bone-in lamb leg, trimmed of excess fat
• 3 tablespoons extra-virgin olive oil
• 2 teaspoons kosher salt
• 1 teaspoon freshly ground black pepper
• 4 sprigs fresh rosemary sprigs
• 4 sprigs fresh thyme sprigs
• 6 cloves garlic cloves, unpeeled
• 750 g medium waxy potatoes, halved
• 4 whole large carrots, cut into 2-inch batons
• 1 whole whole yellow onion, halved
• 250 ml unsalted beef or lamb stock
• 125 ml dry red wine
• 15 g unsalted butter, cold

Instructions

1. 1

   Remove the lamb leg from the refrigerator 45 minutes before cooking — bringing it to room temperature ensures even cooking throughout. While you wait, preheat your oven to 190°C (375°F). Position a rack in the lower third of the oven; this helps the bottom of the roasting pan get hot enough for a good sear.

2. 2

   Pat the lamb completely dry with paper towels. Rub the entire surface with 2 tablespoons of extra-virgin olive oil, then season generously with 2 teaspoons of kosher salt and 1 teaspoon of freshly ground black pepper — get into all the crevices and the underside. This creates a flavorful crust as it roasts.

3. 3

   Strip the leaves from 4 fresh rosemary sprigs and 4 fresh thyme sprigs — discard the woody stems. Scatter the leaves all over the lamb, pressing them gently into the oil and seasoning so they adhere. They'll toast during roasting and flavor the meat and pan sauce.

4. 4

   Toss together the halved potatoes, 2-inch carrot batons, onion halves, and 6 unpeeled garlic cloves in a large bowl. Drizzle with the remaining 1 tablespoon of olive oil, season with a pinch of salt and pepper, and mix until evenly coated.

5. 5

   Set a large roasting pan (at least 35 cm × 25 cm) over medium-high heat on the stovetop. Once it's hot enough that a drop of water sizzles immediately, carefully lay the lamb leg fat-side down in the pan. You should hear an aggressive sizzle — this is the Maillard reaction beginning. Sear for 3-4 minutes without moving it, until the bottom is deep golden brown.

6. 6

   Using tongs, flip the lamb to sear the other side for another 3-4 minutes until golden. This browning creates a flavorful crust and seal. Remove the lamb to a plate temporarily.

7. 7

   Add the prepared potatoes, carrots, onion, and garlic to the same roasting pan, spreading them around the base — the flavorful browned bits will stick and add depth. Nestle the lamb leg back on top, fat-side up.

8. 8

   Pour 125 ml of dry red wine and 250 ml of unsalted beef or lamb stock into the pan around (not over) the lamb — the liquid will braise the vegetables and form the base of your sauce. Transfer the entire roasting pan to the preheated oven.

9. 9

   Roast for 60-75 minutes, stirring the vegetables every 20 minutes to ensure even cooking and prevent sticking. The lamb is done when an instant-read thermometer inserted into the thickest part (not touching bone) reads 55-60°C for medium-rare, or 60-65°C for medium. The vegetables should be tender with golden, crispy edges.

10. 10

    Transfer the lamb to a cutting board and tent loosely with foil. Let it rest for 10-15 minutes — during this time, the internal temperature will climb another 5°C and the juices will redistribute, keeping every slice moist. Meanwhile, leave the roasting pan on the stovetop.

11. 11

    Place the roasting pan over medium heat and pour the roasting liquid into a fine-mesh strainer set over a small saucepan, pressing gently on the solids to extract all the flavorful liquid — you should have about 375 ml. Discard the solids (onion, spent herbs). Skim any excess fat from the surface with a shallow spoon, leaving behind the flavorful brown sediment.

12. 12

    Bring the strained pan sauce to a simmer over medium heat, scraping the bottom of the saucepan with a wooden spoon to dissolve any caramelized bits. Simmer for 2-3 minutes until slightly reduced and intensified. Whisk in 15 g of cold unsalted butter until it melts and glosses the sauce — this enriches it and gives it a silky texture. Taste and add a pinch more salt or pepper if needed.

13. 13

    Slice the rested lamb against the grain into 0.5-cm-thick slices — carving against the grain (perpendicular to the long muscle fibers) keeps every bite tender. Arrange the lamb slices on a warm platter and surround with the roasted potatoes and carrots. Pour the pan sauce over the lamb and vegetables, or serve it in a warm gravy boat on the side. Serve immediately while everything is hot.

Tools you’ll need

• instant-read thermometer
• large roasting pan (35 cm × 25 cm)
• paper towels
• tongs
• large mixing bowl
• fine-mesh strainer
• small saucepan
• wooden spoon
• whisk
• sharp carving knife
• cutting board
• foil

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