Irish Stew in a Pressure Cooker: A Cozy, Faster Supper

Irish stew is a comforting Irish dish of lamb or mutton gently cooked with potatoes, onions, and broth; carrots appear in many family versions. A pressure cooker softens lamb shoulder much faster than a long stovetop simmer, while a second, brief cooking round helps the potatoes and carrots stay intact.

Ingredients

1½ lb (680 g) boneless lamb shoulder, trimmed and cut into 1½-inch (4 cm) chunks; mutton works too, though it can be stronger in flavor
1½ tsp (9 g) fine salt, divided, plus more to taste
½ tsp (1 g) freshly ground black pepper
1 tbsp (15 ml) neutral oil, such as canola oil
1 large yellow onion, about 10 oz (280 g), peeled and cut into thick wedges
2 tbsp (30 g) all-purpose flour
4 cups (950 ml) low-sodium beef or lamb broth
1 tsp (1 g) dried thyme, or 1 tbsp (3 g) fresh thyme leaves
1 bay leaf
1½ lb (680 g) waxy potatoes, such as Yukon Gold, cut into 1½-inch (4 cm) chunks
12 oz (340 g) carrots, peeled and cut into 1-inch (2.5 cm) pieces
2 tbsp (8 g) chopped fresh flat-leaf parsley, for serving
1 tbsp (8 g) cornstarch mixed with 1 tbsp (15 ml) cold water, optional, for thickening

Instructions

Prepare the ingredients. Cut the lamb, onion, potatoes, and carrots as directed, keeping the potato and carrot pieces fairly large so they hold their shape under pressure. Pat the lamb dry with paper towels, then season it with 1 teaspoon of the salt and the pepper. Drying the surface helps the meat brown instead of steam.
Brown the lamb. Set a 6-quart (5.7 L) electric pressure cooker to Sauté, or heat a stovetop pressure cooker over medium-high heat. Add the oil. Working in two batches, brown the lamb on several sides, about 5 minutes per batch, and transfer it to a plate. Let the pot heat back up between batches if needed. Avoid crowding: a little browning adds savory flavor to the broth, but the pieces do not need to be deeply crusted all over.
Cook the onion and deglaze. Add the onion to the pot and cook for about 2 minutes, stirring and scraping up browned bits. Sprinkle in the flour and stir for 30 seconds. Pour in a splash of broth and scrape the bottom thoroughly; stuck-on food can trigger a burn warning on some electric cookers. Add the remaining broth gradually, then stir in the thyme, bay leaf, and remaining ½ teaspoon salt.
Pressure-cook the lamb. Return the lamb and any juices on the plate to the pot. Lock the lid and set the valve to sealing. Cook at high pressure for 25 minutes. Allow about 8 minutes for the cooker to reach pressure, though the exact time depends on the appliance and the temperature of the ingredients. When cooking ends, leave the cooker undisturbed for a 10-minute natural release, then carefully release any remaining pressure according to the manufacturer’s directions.
Add the vegetables. Open the lid away from your face. Stir in the potatoes and carrots, distributing them through the broth. Check the lamb with a food thermometer in a thick piece. USDA FSIS lists 145°F (63°C) with a 3-minute rest as the safe minimum for whole cuts of lamb; this stew cooks the shoulder longer for tenderness, and the meat should be well past that minimum. If it has not reached 145°F (63°C), continue cooking until it does and allow the required rest.
Cook the vegetables under pressure. Lock the lid again and cook at high pressure for 4 minutes. Allow the cooker about 8 minutes to come back to pressure. At the end, use a quick release, which takes about 3 minutes, following the cooker instructions and keeping hands and face clear of the steam. The potatoes should be tender when pierced but not completely falling apart.
Finish and serve. Remove the bay leaf. If you prefer a thicker broth, set the cooker to Sauté and stir in the cornstarch mixture. Simmer for about 4 minutes, stirring gently, until the broth lightly coats a spoon. Taste and adjust the salt and pepper. Let the finished stew stand for at least 3 minutes, then sprinkle with parsley and serve hot.

Tips

Choose the right cut. Boneless lamb shoulder has enough connective tissue to become tender during pressure cooking and gives the broth a full flavor. Mutton is a traditional option in some versions and tends to taste more pronounced. Lean leg meat can be used, but it may turn drier and less silky after the same cooking time. If your lamb is sold with bones, ask the butcher to cut it into stew-size pieces; bones can add flavor, but remove them before serving.

Keep the vegetables chunky. Small dice and thin carrot coins can become soft during the second pressure cycle. Cut the potatoes and carrots into pieces of similar thickness, and use waxy potatoes when you want them to keep their shape. Floury potatoes work too, but they are more likely to break down and naturally thicken the broth.

Mind the cooker’s minimum liquid and fill line. Four cups of broth is suitable for a typical 6-quart electric cooker, but follow your appliance’s minimum-liquid guidance if it differs. Do not fill a pressure cooker above its maximum line; leave extra space if you scale up the recipe. Deglazing the base after browning is especially important in an electric cooker.

Adjust thickness at the end. Irish stew can be brothy or more spoon-coating, depending on the cook and the potatoes. Start without the optional cornstarch, then decide after pressure cooking. For a less glossy finish, mash a few potato pieces against the side of the pot and stir them into the broth instead.

Serving Suggestions

Serve the stew in warm bowls with parsley and plenty of the lamb-and-vegetable broth. Irish soda bread, crusty bread, or a simple brown loaf is useful for soaking up the juices; buttered bread is an easy, filling accompaniment. If you want a lighter side, offer steamed cabbage, buttered peas, or a crisp green salad dressed with a sharp vinaigrette. The stew is substantial, so a small side is usually enough.

For a relaxed meal, set extra black pepper, chopped parsley, and bread on the table so everyone can finish a bowl to taste. If the broth seems thinner than you like, serve the solid ingredients with a slotted spoon and ladle broth over them, or thicken the whole pot as described in the final step. The recipe serves six as a main course, with portions depending on how much bread or side dish is served alongside it.

Variations

Use mutton or bone-in lamb. Mutton gives the stew a deeper, more distinctive flavor and is a classic choice where available. Bone-in lamb shoulder can also be cooked in the broth; leave room in the pot and remove the bones before serving. The precise yield will vary with the amount of bone.

Make a carrot-forward version. Add another 4 oz (115 g) of carrots and reduce the potatoes by the same weight. This keeps the overall amount of vegetables similar while giving the broth a sweeter note. Parsnips can replace some of the carrots, though they soften quickly, so cut them into thick pieces.

Change the herbs. Add 1 tbsp (3 g) chopped fresh rosemary in place of the thyme for a more aromatic stew, or use 1 tsp (1 g) dried rosemary. Rosemary is assertive, so avoid adding a large extra handful. A little chopped parsley at the end keeps the flavor fresh.

Make it gluten-free. Skip the flour when sautéing the onion and thicken the finished stew with the cornstarch mixture, checking that the broth and cornstarch are labeled gluten-free if needed. The broth may be a little less rounded without the flour, but the vegetables and lamb still make a satisfying stew.

Storage and Reheating

Cool leftovers promptly and refrigerate them within 2 hours of cooking in shallow, covered containers. The stew keeps for 3–4 days in the refrigerator. The potatoes may soften and absorb broth as they sit, so loosen the stew with a small splash of water or broth when reheating. Reheat on the stovetop over medium heat, stirring gently, or microwave individual portions in a covered microwave-safe dish, stirring partway through. Reheat leftovers to 165°F (74°C), checking with a food thermometer.

For longer storage, freeze the cooled stew in airtight freezer containers for up to 3 months for best quality. Leave a little headroom for expansion. Thaw it in the refrigerator, then reheat until it reaches 165°F (74°C). Potatoes can become softer after freezing and thawing, but the stew remains useful for a quick meal. Do not leave cooked stew at room temperature for more than 2 hours.

Frequently Asked Questions

Can I make Irish stew without browning the lamb?

Yes. Browning is for flavor rather than safety, so you can skip it when you are short on time. The broth will be lighter and less deeply savory. If you do brown the meat, work in batches and scrape the pot well after adding broth to reduce the chance of a burn warning.

Why cook the lamb and vegetables in separate pressure cycles?

Lamb shoulder needs considerably longer than potato and carrot chunks to become tender. Adding all the vegetables at the start would likely leave them very soft by the time the lamb is ready. The short second cycle gives the vegetables time to cook while helping them keep a recognizable shape.

Can I use frozen lamb?

For the most dependable timing and best browning, thaw the lamb completely in the refrigerator before cooking and pat it dry. Frozen meat releases water and will not brown well; it can also change how long the cooker takes to reach pressure and how evenly the pieces cook. Do not thaw lamb on the counter.

What if the lamb is still tough after pressure cooking?

Meat can need more time depending on the size of the chunks, the particular cut, and the cooker. If it is not tender after the first cycle, return the lamb to high pressure for another 5 minutes, then allow a 10-minute natural release before checking again. Add the potatoes and carrots only once the lamb is close to tender so they do not overcook.

Can I prepare the stew ahead?

Yes. Make it completely, cool it promptly, and refrigerate it for up to 3–4 days. Its flavor settles as it rests, although the potatoes will absorb some broth. Reheat gently to 165°F (74°C), adding a little broth or water if needed. For the neatest vegetable texture, you can also cook the lamb ahead and add freshly cut vegetables during the second pressure cycle just before serving.

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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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