Lamb and Leeks Stew with Anchovy Butter

Serves 4  |  Prep: 20 minutes  |  Cook: 1 hour 45 minutes  |  Total: ~2 hours

Here Is Why This Stew Has a Permanent Spot in My Rotation

Leeks and lamb are a pairing that shows up all over British and Irish farmhouse cooking for a reason: the leeks go almost buttery-soft in the braising liquid, absorbing the lamb’s fat and sweetening as they cook, while the lamb shoulder turns tender enough to pull apart with a spoon. The anchovy butter stirred in at the end is the move that takes this from a solid Sunday stew into something that makes people ask for the recipe. It adds depth and a faint savory richness that you’d never identify as anchovy if no one told you — but you’d absolutely notice if it were missing.

This is a weekend project in the best possible sense: about 20 minutes of hands-on work, then the pot takes care of itself. The lamb and leeks stew with anchovy butter improves significantly the next day, which makes it genuinely useful for feeding people without stress.

What Makes This Stew Worth the Time

Lamb shoulder is one of the more forgiving cuts you can braise — it has enough intramuscular fat and connective tissue that it naturally stays moist and pulls into soft, tender pieces without requiring precise timing. If it cooks for an extra 20 minutes, it’s still good. That’s genuinely useful when you’re also dealing with everything else that happens at dinnertime.

The anchovy butter is also something you can make in two minutes while the stew finishes. It’s a compound butter — softened butter mashed with anchovy paste, garlic, and lemon zest — and it melts into the hot braising liquid right before serving, enriching the sauce without any additional reduction or technique. You can keep leftover anchovy butter in the freezer and use it on roasted vegetables, pasta, or grilled fish for months.

Beyond the practical points: this stew smells extraordinary while it cooks. The combination of slowly sweating leeks, browning lamb, and herbs filling the kitchen is the kind of thing that makes people wander in from other rooms. That’s not a nothing quality.

What You’ll Need

For the stew:

For the anchovy butter:

Swaps that actually work: If you can’t find lamb shoulder, bone-in lamb neck chops will give you even more gelatin and depth — the cook time stays the same. For a version without anchovy, substitute 1 tablespoon of white miso into the butter instead; it provides glutamate richness without the fishiness, though the result is noticeably milder.

How to Make Lamb and Leeks Stew with Anchovy Butter

1. Season and dry the lamb. Pat the lamb shoulder dry with paper towels — really dry, all over — and season generously with salt and pepper on every surface. Damp meat steams instead of browning. Set it aside while you prep the vegetables.
2. Make the anchovy butter first. Mash together the softened butter, anchovy paste, grated garlic, lemon zest, and chopped parsley in a small bowl until smooth and well combined. Cover and keep at room temperature if you’ll use it within 2 hours, or refrigerate if cooking ahead. This takes about 2 minutes and removes one task from the end of the cook.
3. Brown the lamb. Heat the oil in a large Dutch oven or heavy-bottomed pot over medium-high heat until it shimmers. Add the lamb and leave it alone for 4–5 minutes per side. You’re looking for a deep mahogany crust — not just a light golden color. If your pot isn’t large enough to fit the whole piece without crowding, cut it into two large sections and brown them separately. Rushing this step is the single biggest quality variable in the whole recipe. Set the browned lamb aside on a plate.
4. Sweat the leeks. Reduce the heat to medium. Add the sliced leeks to the pot with a pinch of salt and cook, stirring occasionally, for 8–10 minutes. They’ll soften, go slightly translucent, and reduce considerably in volume. They should smell sweet and a little grassy — if they start to catch and brown at the edges, add a splash of water and lower the heat.
5. Add the carrots, garlic, and tomato paste. Stir in the carrot coins and smashed garlic cloves. Cook for 2 minutes, then push everything to the edges and add the tomato paste to the center of the pot. Let it sit and caramelize for 1–2 minutes, stirring occasionally, until it darkens slightly and smells toasted rather than raw. Stir it into the vegetables.
6. Build the braise. Pour in the stock and add the thyme sprigs and bay leaves. Nestle the browned lamb back into the pot — it should be partially submerged, not fully covered. Bring to a gentle simmer, then reduce the heat to low. Cover with a lid slightly ajar.
7. Braise until tender. Cook for 1 hour 30 minutes to 1 hour 45 minutes, turning the lamb once halfway through. The stew is done when the lamb pulls apart easily with two forks and the leeks have dissolved into the sauce, thickening it slightly. If you’re not sure, give it another 15 minutes — it won’t hurt it.
8. Pull the lamb and shred. Transfer the lamb to a cutting board. Remove and discard the bones, thyme stems, and bay leaves. Shred the meat into large, rough pieces using two forks — you don’t want it finely shredded, just pulled apart enough to eat with a spoon.
9. Finish with the anchovy butter. Return the shredded lamb to the pot and stir gently. Reduce the heat to the lowest setting and add the anchovy butter in small pieces, stirring as you go. It will melt into the sauce and emulsify slightly, giving it a silky sheen. Taste now — the anchovy butter carries significant salt, so hold off on adding more salt until after it’s fully incorporated and you’ve tasted the result.
10. Adjust and serve. Taste once more for seasoning. Add black pepper generously — this stew can handle it. Serve immediately, or let it rest for 10 minutes off the heat, which actually improves it slightly.

The Details That Actually Improve This Stew

• Brown the lamb patiently or skip it. The Maillard crust you build on the lamb in step 3 is where a significant portion of the stew’s flavor comes from. If you’re genuinely pressed for time, you can skip the browning and go directly to sweating the leeks — the stew will still be good, just noticeably less deep and complex. There’s no in-between worth doing: a half-hearted 90-second sear contributes almost nothing.
• Wash the leeks twice. Leeks trap grit between their layers and a quick rinse doesn’t get all of it. Slice them first, then submerge the rounds in a bowl of cold water, swish, and lift them out. The grit sinks, the leeks float. Do this once and your stew won’t have a sandy texture.
• The stew is better the next day. This isn’t just something people say to be comforting — the fat redistributes as it cools and the flavors genuinely meld overnight. If you’re cooking for a dinner party, make this the day before, refrigerate it, skim the solidified fat from the top, and reheat gently. The result is noticeably tighter and better integrated.
• Add the anchovy butter off the heat if in doubt. If your stove runs hot and you’re worried about the sauce breaking, remove the pot from the heat entirely before stirring in the butter. It will still melt and incorporate; it just needs a moment of patience.

What Will Ruin This Stew

Boiling the braise: Once the lamb is in the liquid, the heat should be low enough that you see a lazy, occasional bubble — not a steady simmer, and definitely not a boil. Boiling a braise drives off moisture fast and toughens the muscle fibers instead of gently breaking them down. If your lid is rattling, the heat is too high.

Using too much liquid: This stew should be rich and saucy, not soupy. 600 ml of stock is the right amount — the leeks release additional liquid as they cook, and you want the finished sauce to be concentrated and glossy, not watery. If you accidentally add too much liquid, remove the lid for the last 20 minutes of cooking and let it reduce.

Skipping the tomato paste caramelization: Adding tomato paste directly to the liquid without cooking it first leaves a raw, slightly tinny taste in the finished stew. The 2 minutes it takes to caramelize it in step 5 is worth it.

One more thing worth mentioning: don’t let the word “anchovy” in the name put you off or put guests off. The butter adds umami and depth, not fishiness. If someone in your household genuinely won’t try it on those grounds, just don’t tell them it’s in there — you will not hear a complaint.

Ways to Change This Up

• Add potatoes to the braise: Cut 400 g of waxy potatoes (Yukon Gold, Charlotte) into large chunks and add them to the pot in the last 30 minutes of cooking. They absorb the braising liquid and become the starchiest, most flavorful potatoes you’ve ever eaten. If you do this, you don’t need to serve anything alongside — the stew becomes a complete one-pot meal.
• Add white beans: Stir in a drained 400 g can of cannellini beans in the last 15 minutes. They thicken the stew naturally and make the servings go further. Good option if you’re feeding more people or want a heartier weeknight bowl.
• Make it with chicken: Bone-in, skin-on chicken thighs work here in place of lamb — reduce the cook time to 45–55 minutes and check for doneness at 45. The anchovy butter is equally good, though the result is lighter and the sauce less rich. Brown the thighs skin-side down first and render off some of the fat.
• Skip the anchovy if you need to: Make a plain herb butter instead — butter with parsley, a little garlic, lemon zest, and a small amount of Dijon mustard. It’s a completely different dish in terms of depth, but still worth finishing with some form of compound butter rather than nothing.

What to Serve Alongside

The sauce is the main event here, so you want something that can catch it. Thick slices of crusty sourdough or a good baguette on the table is the minimum requirement. Beyond that:

• Creamy mashed potatoes — not overly stiff ones. The stew needs something yielding that the sauce can pool in.
• Soft polenta — especially if you’ve made this ahead and the sauce has tightened. The creaminess of fresh polenta balances the richness of the stew without competing.
• Simply dressed green salad — this is a rich, heavy dish. A salad of bitter greens (radicchio, endive, watercress) with a sharp lemon vinaigrette gives the meal contrast and cuts through the fat. Skip anything sweet or creamy on the side.
• Steamed or roasted green beans — if you want a cooked vegetable, keep it plain and lightly seasoned so it doesn’t fight the stew.

Leftovers and Reheating

Store leftovers in an airtight container in the refrigerator for up to 3 days. As mentioned above, this stew genuinely improves overnight, so leftovers are not a consolation prize.

To reheat on the stovetop: Transfer to a pot with a splash of water or stock — just 2–3 tablespoons — and warm over low heat, stirring gently. The extra liquid prevents it from scorching on the bottom. Don’t rush it; give it 8–10 minutes to come through slowly.

To reheat in the microwave: Cover loosely and use medium power in 90-second intervals, stirring between each. It works, but the stovetop method gives you better control and the sauce reintegrates more smoothly.

This stew also freezes well — up to 2 months. Freeze it in portions, thaw overnight in the refrigerator, and reheat as above. The leeks will be softer after freezing, but the flavor holds. If the sauce looks broken when you reheat it from frozen, a small knob of cold butter stirred in at the end will bring it back together.

Approximate Nutrition Per Serving

Estimates only — values will vary depending on the specific cut of lamb, your exact brands, and how much fat you trim. Calculated for 4 servings without bread or sides.

The thing I keep coming back to with this stew is that it does exactly what a good braise is supposed to do: it makes a tough, inexpensive cut of meat taste like you worked much harder than you did. The anchovy butter at the end is the kind of small, specific technique that separates a forgettable stew from one people remember — and once you’ve made it, you’ll find yourself reaching for it in other places.

If you have a free afternoon and a Dutch oven, this lamb and leeks stew with anchovy butter is absolutely worth your time this weekend.