Irish Stew Recipe: A Classic Lamb and Potato Supper

Irish stew is a hearty Irish braise traditionally made with lamb or mutton, potatoes, onions, and broth; many family versions also include carrots. Gentle simmering turns shoulder meat tender and lets the vegetables flavor the broth, making this a satisfying one-pot supper for a cool evening.

Ingredients

2½ lb (1.1 kg) boneless lamb shoulder, cut into 1½-inch (4 cm) cubes
1½ tsp (9 g) fine salt, plus more to taste
½ tsp (1 g) freshly ground black pepper
1 tbsp (15 ml) neutral oil, such as canola oil
2 medium yellow onions, about 2 cups (300 g) chopped
5 cups (1.2 L) unsalted or low-sodium lamb or beef stock
2 bay leaves
1 tsp (1 g) dried thyme, or 1 tbsp (3 g) fresh thyme leaves
2¼ lb (1 kg) waxy or all-purpose potatoes, peeled if desired and cut into 1½-inch (4 cm) chunks
3 medium carrots, about 2 cups (260 g), cut into 1-inch (2.5 cm) pieces
2 tbsp (8 g) chopped fresh parsley, for serving

Instructions

Prepare the lamb and vegetables. Pat the lamb dry with paper towels; this helps it brown rather than steam. Season it with the salt and pepper. Chop the onions, cut the potatoes and carrots, and measure the stock and herbs before heating the pot. If the lamb has large pieces of surface fat, trim away thick portions but leave a little for flavor.
Brown the lamb. Heat the oil in a heavy Dutch oven or large, lidded pot over medium-high heat. Working in two or three batches so the pot is not crowded, brown the lamb for about 2 minutes per side, approximately 10 minutes total. Transfer browned pieces to a plate. If the pot looks dry between batches, add a teaspoon of oil; if browned bits begin to turn black, lower the heat.
Soften the onions. Reduce the heat to medium, add the onions, and cook for 5 minutes, stirring and scraping up the browned bits. The onions should soften but do not need to brown deeply. If the fond sticks, add a small splash of stock and loosen it with a wooden spoon.
Begin the simmer. Return the lamb and any juices on the plate to the pot. Pour in the stock, add the bay leaves and thyme, and bring the liquid just to a gentle boil. Lower the heat until the surface barely bubbles, cover the pot with the lid slightly ajar, and simmer for 1 hour 20 minutes. Check occasionally and adjust the heat to maintain a quiet simmer; a hard boil can make the meat tough and break up the vegetables later.
Add the potatoes and carrots. Stir in the potatoes and carrots, making sure most pieces are nestled into the liquid. Cover with the lid slightly ajar and simmer gently for 35 minutes, or until the lamb is very tender and the potatoes are cooked through but still hold their shape. If the stew seems too thick before the potatoes soften, add stock or water ¼ cup (60 ml) at a time. If it seems thin, leave the lid a little farther open for the last 10 minutes.
Check doneness and finish. Check a large piece of lamb in its thickest part with a food thermometer. USDA FSIS gives 145°F (63°C) with a 3-minute rest as the safe minimum for whole cuts of lamb; this long braise should make shoulder much more tender than that minimum. Remove the bay leaves, taste the broth, and add salt or pepper if needed. Take the pot off the heat and let the stew stand for 5 minutes, which provides the required three-minute rest, then scatter parsley over it and serve hot.

Tips

Choose shoulder for a tender result. Lamb shoulder has connective tissue that softens during a long, moist simmer. Leg is leaner and can become dry if cooked for the same length of time, while bone-in shoulder works too but may need a little extra cooking and careful bone removal before serving.
Keep the simmer gentle. A few small bubbles are enough. If the broth boils vigorously, lower the heat; aggressive bubbling can toughen meat and cause potatoes to crumble before the lamb is tender.
Adjust the broth without flour. Irish stew is often brothy rather than thickened like gravy. For a slightly fuller texture, mash a few cooked potato pieces against the side of the pot and stir them in. Add liquid gradually if it gets thicker than you like.
Season according to your stock. If using salted stock, start with less salt than listed and adjust at the end. The broth reduces as it simmers, so salting heavily at the beginning can leave the finished stew too salty.

Serving Suggestions

Serve Irish stew in warm bowls with plenty of broth, lamb, and vegetables in each portion. A thick slice of crusty bread or Irish soda bread is useful for soaking up the liquid; buttered brown bread is another simple choice. For a fuller meal, offer steamed cabbage or a lightly dressed green salad alongside it. Keep sides modest because the potatoes already make the stew substantial.

Set out extra chopped parsley and black pepper at the table. If the broth has a little surface fat, skim it with a spoon before serving, or leave it in for a richer finish. A small bowl of mustard can be offered on the side for guests who like a sharper contrast, but it is optional and not needed to season the pot.

Variations

Irish stew has regional and family variations, so there is no single required vegetable list or thickness. Lamb is common, while mutton gives a deeper, more pronounced flavor and may need longer to become tender. If mutton is available, use the same amount by weight and begin checking tenderness after the stated braise; add simmering time as needed rather than relying only on the clock.

Carrots are included here for sweetness and color, but you can omit them for a simpler lamb, onion, and potato version. Parsnips can replace some or all of the carrots; they taste earthier and sweeter. For a more substantial broth, stir in ½ cup (100 g) rinsed pearl barley with the stock, allowing extra liquid as it absorbs broth and checking that the barley is tender before serving. This makes the stew heartier and less like a traditional potato-forward version.

For a lower-cost variation, use beef chuck instead of lamb shoulder in the same quantity. The stew will have a beefier flavor rather than the characteristic richness of lamb; simmer until the beef is tender, adding time if necessary. If you do not have lamb stock, beef stock is a practical substitute, while chicken stock gives a lighter broth. Low-sodium stock makes it easier to control seasoning.

Storage and Reheating

Refrigerate leftovers within 2 hours of cooking. Divide a large batch among shallow, covered containers so it cools promptly, then keep it refrigerated for 3–4 days. The potatoes will soften somewhat as they sit, but the broth often tastes fuller the next day. If fat firms on top in the refrigerator, lift it off before reheating or stir it back in for a richer bowl.

Reheat only the portion you plan to eat, either in a saucepan over medium-low heat or in a microwave-safe dish, stirring occasionally so it heats evenly. Add a splash of water or stock if the broth has thickened. Reheated leftovers should reach 165°F (74°C); check with a food thermometer, especially in the center of a large portion. Freeze cooled stew in airtight freezer-safe containers for up to 3 months for best quality. Thaw in the refrigerator before reheating, and do not leave it at room temperature for extended storage.

Frequently Asked Questions

Can I make Irish stew with mutton instead of lamb?
Yes. Mutton is traditional in some versions and has a more assertive flavor than lamb. Use the same weight, but expect it to take longer to become tender. Keep the pot at a gentle simmer and check the meat periodically; add a little water or stock if the liquid level drops too far.

Should I brown the lamb first?
Browning adds savory flavor and color to the broth, so it is worthwhile if you have time. It is not what makes the lamb tender; the gentle braise does that. Brown in batches rather than crowding the pot, since crowded meat releases moisture and steams instead of developing a browned surface.

Why are my potatoes falling apart?
They may be cut too small, cooked at a hard boil, or simmered longer than needed. Cut them into generous chunks, add them after the lamb has had its initial braise, and keep the liquid at a gentle simmer. Waxy potatoes usually hold their shape better than very floury varieties.

Can I prepare this stew a day ahead?
Yes. Cool and refrigerate it promptly, then reheat it gently the next day to 165°F (74°C). The flavors have time to settle, although the potatoes may become softer. If you want firmer potatoes for serving guests, cook the lamb and broth ahead, chill them safely, then add freshly cut potatoes and carrots during reheating and simmer until tender.

Can I cook Irish stew in a slow cooker?
Yes, though the texture and timing differ. Brown the lamb and soften the onions in a pan first for better flavor, then transfer them with the stock and herbs to the slow cooker. Cook until the lamb is tender, adding potatoes and carrots later if your slow cooker allows, so they do not become overly soft. Follow your appliance’s instructions and confirm the lamb reaches a safe temperature.

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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

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