Nikujaga: Japanese Beef and Potato Stew with Dashi

Nikujaga is a Japanese home-style stew of beef, potatoes, and onions simmered in a savory-sweet broth, often with carrots and dashi. Its simple ingredients become deeply flavorful as they cook together, and family versions vary in sweetness, vegetables, and the kind of beef used.

Ingredients

1¼ lb (570 g) thinly sliced beef, such as chuck, ribeye, or sirloin
1½ lb (680 g) Yukon Gold potatoes, peeled and cut into 1½-inch chunks
1 medium yellow onion (about 7 oz / 200 g), cut into wedges
1 medium carrot (about 4 oz / 120 g), peeled and sliced into ½-inch half-moons
1 tsp (5 ml) neutral cooking oil
2 cups (480 ml) prepared dashi
3 tbsp (45 ml) Japanese soy sauce
3 tbsp (45 ml) mirin
2 tbsp (30 ml) sake
1 tbsp (12 g) granulated sugar
4 oz (115 g) green beans, trimmed and cut into 2-inch pieces
2 tbsp (12 g) thinly sliced scallions, for serving (optional)

Dashi is a Japanese stock, commonly made with kombu seaweed and bonito flakes; prepared dashi or instant dashi both work here. If dashi is hard to find, use low-sodium chicken stock or water, though the stew will taste less distinctly Japanese and more simply savory. Mirin is sweet rice wine. For an alcohol-free variation, replace it with 2 tbsp (30 ml) water plus 1 tbsp (12 g) sugar, and replace the sake with an additional 2 tbsp (30 ml) dashi. The flavor will be a little less rounded, but still balanced.

Instructions

Prepare the ingredients, about 24 minutes. Peel and cut the potatoes, onion, and carrot, and trim the green beans. If the beef is in larger sheets, cut it into strips about 2 inches wide so it is easy to eat. Measure the dashi, soy sauce, mirin, sake, and sugar before starting. Keep the potato pieces fairly large; small pieces are more likely to break apart during simmering.
Start the beef and onion, 6 minutes. Heat the oil in a heavy pot or Dutch oven over medium heat. Add the onion and cook for about 2 minutes, stirring, until the edges begin to soften. Add the beef in a loose layer and cook for about 4 minutes, turning and separating the slices with chopsticks or tongs. It does not need to brown deeply; avoid packing the pot so tightly that the beef steams in a large clump.
Add the vegetables, 2 minutes. Stir in the potatoes and carrots, turning them gently to coat them with the cooking juices. Use a wooden spoon or spatula and avoid vigorous stirring, which can chip the potato corners. The onion will soften further as the stew cooks.
Add the broth and bring it to a simmer, about 4 minutes. Pour in the dashi, soy sauce, mirin, and sake, then sprinkle in the sugar. Stir once to distribute the seasoning. Bring the liquid just to a boil over medium-high heat, skimming off any gray foam that gathers on top. The broth may not completely cover the vegetables; they will soften and settle as they cook.
Simmer until the potatoes are tender, 18 minutes. Lower the heat so the stew bubbles gently, cover the pot with the lid slightly ajar, and cook for 18 minutes. Check that the potatoes are nearly tender by piercing one with a small knife; it should give way without crumbling. If the pot is bubbling hard, lower the heat, since a vigorous boil can break up the potatoes and toughen the beef.
Finish with green beans, 3 minutes. Add the green beans and stir them gently into the broth. Simmer for 3 minutes, or until they are bright green and just tender. For beef safety, use a food thermometer to check a thick folded piece: USDA FSIS lists 145°F (63°C) with a 3-minute rest as the safe minimum for whole cuts of beef. If needed, continue simmering until it reaches that temperature.
Rest and serve, 3 minutes. Turn off the heat and let the stew stand covered for 3 minutes. Taste a spoonful of broth and adjust only if needed; soy sauce can make the stew salty, while a small pinch of sugar can soften a sharp or overly savory edge. Spoon the beef and vegetables into shallow bowls with plenty of broth.

Tips

Choose beef that cooks quickly. Thinly sliced beef sold for sukiyaki or shabu-shabu is convenient, but thin-sliced chuck, ribeye, or sirloin from a butcher also works. If slicing at home, briefly firm a piece of beef in the freezer for 20 to 30 minutes so it is easier to cut thinly; that optional chilling is not included in the prep time. Avoid thick stew cubes for this recipe because they need a much longer braise and will not be tender on the same schedule.
Keep the simmer gentle. Nikujaga is meant to cook steadily, not boil vigorously. A low simmer helps the potatoes hold their shape and gives the beef time to absorb the seasoned broth. If the liquid drops too low before the potatoes are tender, add a splash of dashi or water rather than turning up the heat.
Adjust seasoning at the end. Different brands of soy sauce, dashi, and mirin vary in saltiness and sweetness. Start with the listed amounts, then taste the broth after cooking. If it tastes too salty, loosen it with a little water or dashi; if it seems flat, add soy sauce a teaspoon at a time.
Do not over-stir or overcook. Turn the ingredients gently, especially after the potatoes become tender. If making the stew ahead, the potatoes will continue to soften as it cools and reheats, so stop cooking when they are just tender rather than waiting for them to fall apart.

Serving Suggestions

Serve nikujaga hot in individual bowls, with steamed Japanese short-grain rice to catch the broth. A bowl of miso soup and a simple cucumber or cabbage salad make a fuller meal without competing with the stew’s sweet-savory flavor. Scallions add a fresh finish; toasted sesame seeds are another optional garnish, though they are not essential to the traditional home-style presentation.

For a casual meal, put the pot on the table and let everyone spoon beef, vegetables, and broth over rice. The broth is deliberately lighter than a thick gravy, so a small bowl of rice alongside the stew works just as well. If serving several dishes, offer pickled vegetables on the side for a crisp, tangy contrast.

Variations

There is no single fixed combination of vegetables for nikujaga. Some home cooks include shirataki noodles, which are made from konjac and are often sold in packets near tofu or refrigerated Japanese ingredients. Drain and rinse about 7 oz (200 g), then add them with the dashi; they contribute a springy texture and take on the broth’s flavor. If unavailable, leave them out rather than substituting ordinary pasta, which cooks differently and can make the broth starchy.

Peas, snap peas, or sliced mushrooms can replace the green beans. Add quick-cooking vegetables near the end, as with the beans, while mushrooms can go in with the potatoes. Some versions use pork instead of beef; thinly sliced pork shoulder is a practical swap, though it gives the stew a milder, less beefy character. You can also make the broth sweeter or more savory by adjusting the sugar or soy sauce slightly after tasting.

For a lighter-tasting broth, use low-sodium dashi and reduce the soy sauce to 2 tbsp (30 ml), then add more at the table if needed. If you do not have sake, omit it and add the same volume of dashi or water. The result will have a little less aroma, but the dish will still have its characteristic combination of tender potatoes, onion, beef, and seasoned broth.

Storage and Reheating

Refrigerate leftovers within 2 hours of cooking in a shallow, covered container. Nikujaga keeps for 3 to 4 days in the refrigerator. The potatoes absorb broth as they sit, so the stew may taste more seasoned the next day and look less brothy; add a tablespoon or two of water or dashi when reheating if you prefer more liquid.

Reheat only the portion you plan to serve. Warm it in a saucepan over medium-low heat, stirring carefully, until it is steaming throughout and reaches 165°F (74°C). You can also microwave it in a covered, microwave-safe dish, stirring partway through so the center heats evenly; check the temperature with a food thermometer. Freeze leftovers in a sealed freezer-safe container for up to 2 to 3 months for best quality. Thaw overnight in the refrigerator and reheat to 165°F (74°C); potato texture may become softer after freezing.

Frequently Asked Questions

What does nikujaga mean?

Nikujaga combines the Japanese words for meat, niku, and potatoes, jaga, a shortened form of jagaimo. The name describes the dish’s central ingredients. In Japan it is a familiar home-style stew, and cooks adapt the vegetables and seasoning to their own preferences.

Can I make nikujaga without dashi?

Yes. Low-sodium chicken stock is the easiest substitute, and water also works if you season carefully. Dashi gives the stew a savory, seaweed-and-bonito depth that stock does not fully reproduce, so the result will taste different but will still be comforting and flavorful. Taste before adding extra soy sauce, especially if your stock is salted.

Which potatoes are best for nikujaga?

Yukon Gold potatoes are a dependable choice because they become creamy while usually holding their shape in a gentle simmer. Waxy potatoes also work well. Russets can be used, but they are more likely to break down and thicken the broth; cut them into larger pieces and handle them gently if that is what you have.

Can I make it ahead?

Yes. Make the stew a day ahead, cool it promptly, and refrigerate it in a covered container. The potatoes and beef will absorb the broth as it rests, which can deepen the overall flavor, though the potatoes may soften. Reheat gently with a splash of dashi or water and bring the leftovers to 165°F (74°C) before serving.

Why did my potatoes fall apart?

They may have been cut too small, cooked at a hard boil, or stirred too often. Cut potatoes into roughly 1½-inch chunks, keep the pot at a gentle simmer, and turn the ingredients only as needed. Check for tenderness at 18 minutes; if a knife slides in easily, take the pot off the heat rather than continuing to cook.

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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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