Filipino Catfish Stew: A Tamarind Sinigang na Hito

Filipino catfish stew, often called sinigang na hito, is a sour, savory soup of catfish, vegetables, and tamarind broth. This home-style version balances the fish’s mild flavor with bright acidity and tender vegetables; sinigang ingredients and sourness vary from cook to cook and region to region.

Ingredients

2 lb catfish steaks or thick fillets (900 g), cut into pieces about 1½ inches (4 cm) thick
1 tablespoon neutral cooking oil (15 ml)
1 medium yellow onion (about 6 oz / 170 g), thinly sliced
2 medium ripe tomatoes (about 10 oz / 285 g), cut into wedges
8 cups water (1.9 L)
3 tablespoons tamarind concentrate (45 ml), preferably unsweetened
2 tablespoons fish sauce (30 ml), plus more to taste
1 teaspoon fine salt (5 g), divided, plus more to taste
¼ teaspoon ground black pepper (about 0.5 g)
8 oz daikon radish (225 g), peeled and cut into ½-inch (1 cm) half-moons
1 small Asian eggplant (about 8 oz / 225 g), cut into 1-inch (2.5 cm) pieces
6 oz green beans (170 g), trimmed and cut into 2-inch (5 cm) lengths
1 long green chile, such as a finger chile (about 15 g), left whole or slit once, optional
6 oz water spinach, also called kangkong (170 g), trimmed into 3-inch (7.5 cm) lengths; or use 4 oz baby spinach (115 g)
1 lime (about 2 oz / 55 g), cut into wedges, for serving

Instructions

Prepare the ingredients. Pat the catfish dry with paper towels and check for any stray bones. Keep the pieces large so they are less likely to break apart in the pot. Slice the onion, cut the tomatoes and vegetables, and measure the tamarind, fish sauce, and seasonings. If using water spinach, separate the thicker stems from the leaves; the stems need a little longer in the broth. Do not rinse raw fish in the sink, since splashes can spread raw seafood juices around the kitchen.
Soften the aromatics. Heat the oil in a large, heavy pot over medium heat. Add the onion and cook for about 3 minutes, stirring occasionally, until it begins to soften. Add the tomato wedges and cook for 2 minutes, gently turning them once or twice. They should begin to slump and release juice but do not need to become a paste. This short sauté gives the broth a rounded savory base without masking the tamarind.
Build the sour broth. Pour in the water and stir in the tamarind concentrate, fish sauce, half of the salt, and black pepper. Add the whole green chile if using. Bring the pot to a boil, then reduce the heat and simmer gently for 10 minutes. Taste the broth before adding the vegetables: it should be noticeably tangy and savory, but not harshly sour or overly salty. Tamarind products differ in strength, so if yours is especially concentrated, begin with 2 tablespoons and add more after tasting.
Cook the firm vegetables. Add the daikon and eggplant. Keep the broth at a steady, gentle simmer for 8 minutes, turning the vegetables carefully once if they are not submerged. The daikon should be starting to turn translucent at the edges, while the eggplant should be tender but still hold its shape. Avoid a hard boil; vigorous bubbling can break up the vegetables and make the finished soup cloudy.
Add the catfish and beans. Slide the catfish pieces and green beans into the broth, spacing them around the pot. If you separated water-spinach stems, add those now too. Bring the liquid back to a gentle simmer, cover partially, and cook for about 10 minutes. Keep the heat low enough that the fish poaches rather than tumbles in a rolling boil. Check the thickest catfish piece with a food thermometer; USDA FSIS gives 145°F (63°C) as the safe minimum internal temperature for fish. If it has not reached that temperature, simmer briefly and check again. The fish should be opaque and should separate easily with a fork, but take the thermometer reading as the safety check.
Finish the greens and season. Stir in the water-spinach leaves, or baby spinach if substituting, and cook for about 2 minutes, just until wilted. Turn off the heat and taste the broth. Add the remaining salt a little at a time, plus extra fish sauce for savoriness or a small amount of tamarind for more tang. Serve hot with lime wedges at the table. Lift fish pieces gently with a broad spoon to keep them intact.

Tips

Choose a good souring ingredient. Tamarind concentrate is convenient and easy to portion. If you can find Filipino sinigang sa sampalok powder or a tamarind soup mix, use the package’s suggested amount as a starting point, then taste before adding more; many mixes contain salt and seasoning, so reduce the added salt and fish sauce as needed. Unsweetened tamarind paste can also work, but it may need to be loosened with hot water and strained to remove fibers or seeds.
Keep the simmer gentle. Catfish is tender and can flake apart if stirred roughly or boiled hard. Once the fish is in the pot, avoid stirring; gently nudge pieces into the broth with a spoon instead. If your pot is narrow, add the fish in a single layer or cook in two batches.
Adjust acidity after cooking the vegetables. Tamarind’s sourness varies by brand and age. It is easier to add a little more concentrate at the end than to correct a broth that has become too sharp. If the soup is too tart, dilute it with a splash of hot water and adjust the fish sauce and salt to restore balance.
Use the greens you can find. Water spinach has tender leaves and crisp, hollow stems and is traditional in many versions. Baby spinach is a useful substitute, though it wilts more quickly and has a softer texture. Add spinach at the very end rather than simmering it with the root vegetables.

Serving Suggestions

Serve the stew in deep bowls while the broth is hot, making sure each portion gets fish, several kinds of vegetables, and plenty of soup. Steamed white rice is the classic partner: spoon a little broth over the rice or alternate bites of rice and the tangy stew. The rice softens the broth’s acidity and makes the meal more substantial without competing with the fish. If you want a simple side, offer sliced cucumber or a small plate of fresh tomatoes and onion. Set lime wedges and extra fish sauce on the table so diners can adjust their own bowls, but taste the soup first because the broth is already seasoned.

Variations

Use fresh tamarind pulp. When fresh or frozen tamarind pulp is available, simmer it separately in a little water until soft, then press it through a fine strainer and add the strained liquid to the pot. This takes more preparation than concentrate and can give the broth a fruitier, less uniform sourness. Remove seeds and fibers rather than adding them directly to the stew.

Change the vegetable mix. Filipino sinigang is adaptable, and cooks use vegetables that are in season or available locally. Okra, taro root, or a few radish greens can fit naturally. Taro takes longer to soften than spinach, so add peeled chunks with the daikon; add okra in the final several minutes so it keeps some structure. Keep the total amount of vegetables close to the recipe’s amount so the broth remains plentiful.

Make it milder or hotter. Leave out the green chile for a mild pot, or serve sliced fresh chile at the table for people who want more heat. For a less sour broth, begin with 2 tablespoons of tamarind concentrate and increase it after tasting. The goal is a clear, lively tang, not a fixed level of sourness.

Try another fish. Firm pieces of tilapia, milkfish, or another mild fish can replace catfish, though cooking time depends on thickness. Add the fish only after the vegetables are nearly tender and check the thickest piece for 145°F (63°C). Delicate thin fillets may cook faster than catfish steaks, so check them early and lift them out as soon as they are done.

Storage and Reheating

Refrigerate leftover stew within 2 hours of cooking, divided into shallow airtight containers so it cools promptly. It keeps for 3–4 days in the refrigerator. The fish will become more fragile after storage, so avoid stirring the pot when portioning or reheating. For the best texture, warm only the amount you plan to eat in a covered saucepan over low heat, stirring the broth gently around the fish. Reheat leftovers to 165°F (74°C), checking the center of a serving with a food thermometer. Do not let the stew sit at room temperature for more than 2 hours, or more than 1 hour when the room is hotter than 90°F (32°C).

You can freeze the stew in airtight freezer containers for about 2 months for best quality, though the fish and eggplant may soften after thawing. Leave a little room at the top of each container for expansion. Thaw it overnight in the refrigerator, then reheat gently to 165°F (74°C). If the fish breaks into flakes, the soup is still usable; serve it over rice or ladle it carefully rather than trying to keep the pieces whole.

Frequently Asked Questions

Is Filipino catfish stew the same as sinigang na hito?

It is a catfish version of sinigang, the Filipino family of sour soups. Hito means catfish, and sinigang is commonly made with a souring ingredient such as tamarind, but ingredients and methods vary among households and regions. This recipe uses tamarind, vegetables, and fish sauce for a practical, balanced broth rather than claiming to represent every version.

Can I use frozen catfish?

Yes. Thaw it in the refrigerator, remove it from its packaging, and pat it dry before cooking. If the fish has released liquid, discard that liquid rather than adding it to the broth. Use the same method and thermometer check, but begin checking for doneness a little early if the pieces are thinner than the recipe’s 1½-inch pieces.

How can I make the stew less sour?

Start with 2 tablespoons of tamarind concentrate instead of 3, then taste the broth after it has simmered. Add more in small increments if you want a sharper flavor. If it is already too sour, add hot water a little at a time and adjust the fish sauce and salt; adding a large amount of sugar would change the stew’s intended savory, tangy character.

Can I make the broth ahead of time?

Yes. You can prepare the broth through the simmering step, cool it promptly, and refrigerate it for up to 3–4 days. Reheat it to a simmer, cook the vegetables until nearly tender, and add the catfish shortly before serving so it does not overcook. Refrigerate the prepared broth within 2 hours, and keep raw fish separate until it is time to cook.

What should I do if the catfish falls apart?

It will still taste good, even if it is less tidy to serve. Catfish can flake from vigorous boiling, excessive stirring, or cooking longer than needed. Keep the broth at a gentle simmer, use a wide spoon to lift pieces, and check the thickest piece as it cooks. For future batches, use thicker steaks or add delicate fillets later in the cooking process.

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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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