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Mastering Jamie Oliver’s roast leg of lamb with anchovies transforms a simple Sunday dinner into a showstopping centerpiece. The secret lies in that umami-rich anchovy crust, which creates a golden, crackling exterior while keeping the meat impossibly tender inside.
I’ve perfected this technique over years of holiday feasts, and it never fails to impress—even skeptical lamb skeptics.
What sets this recipe apart is the combination of bold flavors and precise technique.
You’ll start with a rosemary-garlic rub that infuses the lamb with aromatic depth, then seal it with a paste of anchovies, mustard, and olive oil—a method Jamie Oliver popularized for its ability to create a flavorful crust without overpowering the meat.
The herbed butter basting ensures every bite stays juicy and rich.
By the time it emerges from the oven, you’ll have a leg of lamb with a crisp, caramelized crust that shatters at the touch and succulent pink centers that melt in your mouth.
The aroma alone will have guests gathering before the timer even dings. This isn’t just a roast—it’s a statement piece that elevates any dinner table.
The best part? This recipe scales beautifully, whether you’re feeding a crowd or treating yourself to a luxurious meal. Pair it with roasted root vegetables or a bright green salad to balance the richness. Let’s get cooking—your taste buds won’t regret it.
Ingredients for jamie oliver roast leg of lamb anchovies
Six pounds of lamb, bold flavors, and one unforgettable crust. Everything you need for Jamie Oliver's legendary roast.
| Ingredient | Amount | Notes |
|---|---|---|
| Leg Of Lamb 🐑 | 4 lb | Bone-in, frenched for even cooking |
| Fresh Rosemary 🌿 | ½ cup | Chopped, stems removed |
| Garlic Cloves 🧄 | 8 cloves | Peeled, smashed for infusion |
| Extra-Virgin Olive Oil 🫒 | ½ cup | High quality, fruity |
| Anchovy Fillets 🐟 | 6 whole | High-quality, oil-packed |
| Dijon Mustard 🍯 | 2 tbsp | Smooth, not coarse |
| Unsalted Butter 🧈 | ½ cup | Cold, cubed for basting |
| Lemon Zest 🍋 | 1 tbsp | From 1 large lemon |
| Kosher Salt 🧂 | 2 tsp | Diamond Crystal preferred |
| Freshly Ground Black Pepper 🌶️ | 1 tsp | Coarse grind preferred |
| Dried Thyme 🌿 | 1 tsp | Or 1 tbsp fresh thyme |
| Red Wine Vinegar 🍷 | 1 tbsp | For basting liquid |
| Honey 🍯 | 1 tbsp | Light, for glaze finish |
The lamb is non-negotiable here—look for a bone-in, frenched leg (ask your butcher to trim excess fat). Costco or Whole Foods usually carry the perfect cut. If you're buying whole, trim the silver skin and fat cap to ¼-inch thickness—this helps the crust form evenly. Fresh rosemary and garlic are worth the trip to the farmers market for this dish. Penzeys sells pre-chopped rosemary if you're short on time, but fresh always wins. The anchovies? Canned in olive oil (like Constance) are best—skip the salted ones. And don't skip the lemon zest; it brightens the whole dish.
No fresh rosemary? Dried at one-third the amount works, but it won't have that same piney aroma. Short on anchovies? Capers or sun-dried tomatoes** (finely chopped) add umami in a pinch. The Dijon mustard can be swapped for whole-grain if you prefer texture. For the butter, European-style (like Plugrá) melts better than American. The honey? Manuka or clover both work—just avoid dark, heavy honeys that can overpower. And if you're making this ahead, prep the anchovy paste the night before—it melds flavors beautifully.
This roast tastes even better the next day, so plan ahead. Wrap tightly in foil and refrigerate for up to 3 days. For leftovers, reheat in a 350°F oven with a splash of water until warm. The crust will re-crisp if you broil for 2-3 minutes at the end. Portion the meat with some of the juices for sandwiches—trust me, it's the best part. And save those anchovy paste scraps? Toss them in a pan with olive oil for a quick umami boost on toast.
Why You'll Love This Recipe
- Foolproof Roast: I swear by this method—just score the lamb, rub it with garlic, rosemary, and crushed anchovies, then let the oven do the work. No basting, no fuss, just melt-in-your-mouth perfection.
- Umami Bomb: Those little anchovy fillets pack a punch—salty, briny, and rich—that cuts through the lamb’s richness. Honestly, the first bite makes you question why you’ve never tried it.
- Leftovers for Days: The meat stays tender for ages, so I roast a big one and repurpose it: sandwiches, salads, even a quick pasta. My freezer’s always stocked with this stuff.
- Weeknight Hero: Twenty minutes of prep, then hands-off cooking while you drink wine and pretend you’re not cooking. Between us, it’s my go-to when I’d rather watch Netflix than slave over a meal.
Step-by-step instructions for Jamie Oliver's roast leg of lamb with anchovies
Here's how to nail this umami-packed lamb with crispy crust and herbed butter magic.
Make the Anchovy-Herb Paste and Herb Butter
In a small bowl, finely chop the 6 whole anchovy fillets and mix with the 2 tbsp Dijon mustard, 1 tbsp red wine vinegar, and 1 tbsp honey. This creates the flavor bomb that'll create that signature crust. Set aside while you prep the butter.
In another bowl, combine the 0.5 cup unsalted butter with the 0.5 cup fresh rosemary, 8 cloves garlic cloves (smashed), 1 tbsp lemon zest, 2 tsp kosher salt, 1 tsp freshly ground black pepper, and 1 tsp dried thyme. Mix well until fully incorporated - this herbed butter will be your basting secret weapon.
Prep and Season the Lamb
Take the 4 lb leg of lamb out of the fridge and pat it completely dry with paper towels - moisture is your enemy when you want that perfect crust. Rub the anchovy-herb paste all over the lamb, including inside the cavity, pressing it into the meat so it sticks.
Let the lamb sit at room temperature for 30 minutes while you preheat your oven to 325°F. This resting time ensures even cooking. Meanwhile, shape the herbed butter into a log and wrap it in plastic wrap for easy basting later.
Roast the Lamb Low and Slow
Place the lamb on a rack in a roasting pan, fat side up. Roast for 2 hours until the internal temperature reaches 135°F (medium-rare). The key here is patience - this low temperature breaks down the collagen for tender meat without drying it out.
Every 30 minutes, remove the lamb from the oven and spoon some of the herbed butter over the top, letting it melt and baste the meat. This creates layers of flavor and helps develop that beautiful crust. The lamb should have a deep golden color when done.
Finish with Crispy Crust and Rest
When the lamb reaches 135°F, increase the oven temperature to 450°F and continue roasting for 15-20 minutes until the crust is deep brown and crispy. This high-heat finish caramelizes the sugars and creates that perfect texture contrast.
Remove the lamb from the oven and let it rest for 20 minutes before carving. Tent loosely with foil to keep it warm. This resting period is crucial - it allows the juices to redistribute throughout the meat, ensuring each slice is moist and flavorful.
Carve and Serve with Pan Sauce
Slice the lamb against the grain into ½-inch thick pieces. The meat should be pink in the center with a beautiful crust. For the pan sauce, place the roasting pan on the stovetop over medium heat and add 0.5 cup extra-virgin olive oil. Scrape up all the browned bits from the bottom of the pan, then pour in ¼ cup water and simmer for 2 minutes until slightly reduced.
Serve the lamb with the pan sauce spooned over the top, accompanied by roasted vegetables or crusty bread. The combination of anchovy umami, herbed butter richness, and crispy crust makes this dish truly special - perfect for any occasion.
Pro Tips For Making Jamie Oliver Roast Leg Of Lamb Anchovies
- CRUSH THE ANCHOVIES FIRST: Don’t just toss those anchovy fillets whole—mash them into a paste with a fork or your fingers before mixing with olive oil and garlic. I learned this the hard way: whole anchovies hide in the fat and don’t infuse properly. A smooth paste coats the lamb evenly, giving you that deep, salty umami punch without any fishy surprises.
- SALT THE LAMB 24 HOURS EARLY: Season the leg of lamb generously with salt (and pepper) the night before roasting. The salt penetrates deeper, keeping the meat juicy and the crust crisp without overpowering the anchovy-rosemary flavor. Trust me, skipping this step means a tougher, less flavorful result—your future self will notice.
- ROAST LOW AND SLOW AFTER SEARING: Sear the lamb hard on all sides first, then drop the oven to 160°C (320°F) and cook until internal temp hits 55°C (130°F) for medium-rare. Too high a temp too long = dry lamb. My first attempt at this recipe ended up like shoe leather because I kept checking the oven. Use a meat thermometer—it’s non-negotiable.
- USE A LOT OF OIL FOR CRUST: Slather that searing pan with 2 tablespoons of olive oil—enough to coat the bottom like a thin film. The anchovy paste needs fat to sizzle and stick, not just sit there. I used to skimp, and the crust never formed right. This isn’t the time to be frugal; the payoff is worth it.
Best sauces and condiments for this recipe
Anchovy-Herb Pan Sauce
The anchovy paste you used on the lamb creates a flavorful base for a quick pan sauce that ties everything together. After roasting, scrape up all the browned bits from the pan with a wooden spoon - these are pure flavor.
Deglaze with ¼ cup red wine vinegar and ½ cup beef broth, then simmer for 3-4 minutes until slightly reduced. Finish with a pat of herbed butter and a squeeze of fresh lemon juice. This sauce mirrors the umami depth of the lamb while adding brightness. 🍷
Rosemary-Infused Olive Oil
For an elegant drizzle, infuse ½ cup extra-virgin olive oil with ½ cup fresh rosemary sprigs and 3 smashed garlic cloves. Heat gently for 5 minutes until fragrant, then strain.
Drizzle over sliced lamb just before serving to enhance the herby notes. I like to finish with a sprinkle of flaky sea salt and fresh thyme leaves for extra sophistication. ✨
Garlic-Honey Glaze
Create a sweet-savory contrast by combining 2 tbsp honey, 1 tbsp Dijon mustard, 1 tbsp red wine vinegar, and 2 minced garlic cloves. Simmer for 2 minutes until slightly thickened, then brush over the lamb during the final 10 minutes of roasting.
The caramelized glaze adds a sticky, glossy finish that guests will love. 🍯
Creamy Mint Yogurt Dip
Balance the richness with a cooling dip made from ½ cup Greek yogurt, 1 tbsp lemon juice, 1 tbsp chopped fresh mint, and ½ tsp ground cumin. Serve with crusty bread or as a sauce for sliced lamb.
The yogurt cuts through the fat while the mint adds freshness. Perfect for dipping or drizzling over the finished dish. 🌿
Red Wine Reduction
For a more decadent option, reduce 1 cup dry red wine (like Cabernet Sauvignon) with 1 tbsp anchovy paste and 1 tbsp honey until syrupy. Strain and drizzle over sliced lamb.
The wine's tannins complement the lamb's richness while the anchovies add depth. Save a splash to deglaze the pan for extra flavor. 🍷
Herbed Butter Spread
Use the leftover herbed butter from basting to create a spread for toasted baguette slices. Mix in 1 tbsp chopped parsley and ½ tsp lemon zest for extra brightness. Serve alongside the lamb for a simple, flavorful accompaniment. This spread is also great for sandwiches the next day. 🧈
Nutrition facts
Frequently asked questions
Why do anchovies work so well with roast lamb?
Anchovies add a concentrated umami punch that complements lamb's natural richness without overpowering it. When blended into the paste, they create a flavorful crust that caramelizes beautifully in the oven. The saltiness also helps tenderize the meat, while the oil-packed variety adds subtle fat for moisture.
Can I make this recipe ahead of time?
Prep the anchovy paste and herb butter up to 2 days ahead and store in the fridge. For the full roast, cook it 1 day ahead and refrigerate tightly wrapped. Reheat at 350°F for 30 minutes with a splash of water, then broil for 2-3 minutes to restore the crust. The flavors actually deepen overnight!
What's the best way to carve a leg of lamb?
Slice against the grain into ½-inch thick pieces for maximum tenderness. Start by removing the meat from the bone in one piece, then cut through the connective tissue. For presentation, fan the slices slightly and arrange with the crust side up. A sharp carving knife makes all the difference!
Can I substitute anchovies in this recipe?
For umami depth, try capers (1 tbsp finely chopped) or sun-dried tomatoes (2 tbsp minced). For saltiness, use 1 tsp fish sauce or ½ tsp soy sauce in the paste. However, anchovies' unique fat content is hard to replicate—they're the secret to that signature crust!
How do I know when the lamb is done?
Use a meat thermometer for perfect results: 135°F for medium-rare (recommended), 145°F for medium. The internal temperature should rise 5°F while resting. For visual cues, look for deep golden-brown crust and slightly pink centers—never fully gray or dry-looking meat.