Sinigang na Gabi Recipe: Sour Pork and Taro Soup

Sinigang na gabi is a Filipino sour soup, commonly made with pork, tamarind, vegetables, and gabi (taro root). The taro softens as it cooks and releases starch that gives the broth a gently fuller texture; the sour, savory soup is served hot with rice. Ingredients and souring agents vary by household, so adjust the tamarind to taste.

Ingredients

2 lb (900 g) bone-in pork shoulder or ribs, cut into 1½- to 2-inch (4- to 5-cm) pieces
10 cups (2.4 L) water
1 medium yellow onion (about 6 oz/170 g), peeled and cut into wedges
2 medium tomatoes (about 10 oz/280 g), cut into wedges
1 tbsp (15 ml) fish sauce, plus more to taste
1 lb (450 g) fresh gabi (taro root), peeled and cut into 1½-inch (4-cm) chunks; wear gloves if your skin is sensitive
1 packet (about 1.4 oz/40 g) sinigang sa sampalok (tamarind soup mix), or ½ cup (120 ml) unsweetened tamarind concentrate; see Tips
1 medium daikon radish (about 10 oz/280 g), peeled and sliced into ½-inch (1-cm) rounds
8 oz (225 g) long green beans, trimmed and cut into 2-inch (5-cm) lengths
1 medium Asian eggplant (about 8 oz/225 g), cut into 1-inch (2.5-cm) chunks
1 small bunch water spinach (about 6 oz/170 g), tough stems removed and leaves and tender stems cut into 3-inch (8-cm) lengths; substitute baby spinach if unavailable
1–2 long green chilies, such as siling haba, left whole (optional)
¼ tsp (1 g) ground black pepper, plus more to taste
Steamed rice, for serving

Instructions

Prepare the ingredients. Cut the pork and vegetables as listed. If using fresh gabi, peel it with a knife rather than rubbing it with bare hands, and rinse the pieces. Wash the water spinach well, since grit can collect on the stems.
Start the pork broth. Put the pork, water, onion, tomatoes, fish sauce, and black pepper in a large heavy pot. Bring to a boil over medium-high heat, skimming off foam from the surface. Reduce the heat to maintain a gentle simmer, partially cover, and cook for 45 minutes. The pork should be tender enough to pierce easily but not falling apart.
Cook the taro. Add the gabi and simmer for 15 minutes, uncovered or partially covered. Stir carefully once or twice so the pieces do not break up. The taro is ready when a knife slips into the center without resistance. For pork safety, check a thick piece with a food thermometer: whole cuts of pork must reach the USDA FSIS safe minimum of 145°F (63°C) followed by a 3-minute rest; this longer simmer should take the pork well beyond that temperature.
Season the soup sour. Stir in the tamarind mix, or add tamarind concentrate a little at a time. Start with about three-quarters of the amount if using concentrate, since products vary in strength. Simmer for 2 minutes, taste, and add more souring agent if you like a sharper broth. Adjust saltiness with fish sauce rather than adding it all at once.
Add the firm vegetables. Add the daikon and eggplant, then simmer for 8 minutes. Add the green beans and whole chilies, if using, and cook for 4 minutes more, until the vegetables are tender but still hold their shape.
Finish with greens and serve. Add the water spinach and cook just until wilted, about 1–2 minutes. Taste the broth and adjust with fish sauce, black pepper, or a little more tamarind. Serve hot with steamed rice.

Tips

Handle gabi carefully. Raw taro can irritate skin and may cause mouth or throat irritation if undercooked. Use gloves if needed, and simmer it until thoroughly tender; do not taste it raw or stop cooking while it is firm.
Choose the souring agent thoughtfully. Sinigang mix is convenient and seasoned, so taste before adding extra fish sauce. Tamarind concentrate gives a less standardized result; unsweetened tamarind pulp cooked in water and strained also works, though it takes extra preparation. Lemon or lime can add sourness in a pinch, but their brighter citrus flavor is different from tamarind.
Keep the broth at a gentle simmer. A rolling boil can make the pork and vegetables break apart and cloud the soup. Add each vegetable according to how long it needs, rather than putting everything in at once.
Adjust thickness and seasoning at the end. Gabi naturally thickens the broth as it softens. If the soup becomes thicker than you prefer, stir in hot water; then taste again because the added water will dilute the sourness and salt.

Serving Suggestions

Serve sinigang in bowls with a piece of pork, taro, and vegetables in each portion, plus plenty of broth. Steamed white rice is the classic accompaniment; diners can spoon the soup over rice or eat the two side by side. Put extra fish sauce and sliced fresh chilies on the table for anyone who wants a saltier or hotter bowl. Since the soup already contains several vegetables, a simple plate of sliced cucumber or fresh fruit is enough alongside it.

Variations

For a richer, meatier bowl, use pork ribs instead of shoulder; they may need a little more simmering to become tender. Pork belly is another option, though it makes the broth fattier. Shrimp, fish, beef, and other proteins appear in different sinigang versions, but they need different cooking times: add fish near the end and cook it to 145°F (63°C), measured in the thickest part. Avoid using the pork timing for seafood.

Water spinach is traditional in many versions, but kangkong can be difficult to find outside Filipino and Asian groceries. Baby spinach is an easy substitute; it wilts faster and has a more delicate texture, so add it at the very end. You can also use mustard greens, which bring a more peppery bite. Adjust the amount of tamarind mix or concentrate to make the broth milder or more sharply sour, and leave out the chilies for a gentler soup.

Storage and Reheating

Cool leftovers promptly and refrigerate within 2 hours in shallow, covered containers. Keep the soup refrigerated at 40°F (4°C) or below and use within 3–4 days. The gabi may soften further and thicken the broth as it sits; add a little water when reheating if needed. Reheat only the portion you plan to eat on the stovetop until steaming throughout and at least 165°F (74°C), checking with a food thermometer, or reheat in a microwave and stir midway so it heats evenly. Do not leave cooked soup at room temperature for more than 2 hours, or more than 1 hour if the temperature is above 90°F (32°C). For longer storage, freeze in airtight containers for up to 2–3 months; thaw in the refrigerator and reheat to 165°F (74°C).

Frequently Asked Questions

What is gabi in sinigang?
Gabi is taro, a starchy tropical root. In sinigang, it cooks until tender and helps give the broth a fuller body. Use taro sold for cooking, peel it, and simmer it completely until soft.

Can I use frozen taro?
Yes. Add frozen taro directly to the simmering soup if the package allows cooking from frozen, and follow its directions. It may cook more quickly or break apart more easily than fresh chunks, so check for tenderness early and stir gently.

Can I make this without sinigang mix?
Yes. Use unsweetened tamarind concentrate or tamarind pulp cooked and strained into the broth. Concentrates vary in intensity, so add a little, taste, and increase gradually. Avoid sweetened tamarind products unless you are prepared for a sweeter broth.

Why is my sinigang broth cloudy or very thick?
A vigorous boil can break down the pork and taro, while gabi naturally releases starch as it cooks. Keep the soup at a gentle simmer and handle the taro carefully. If the finished broth is too thick, thin it with hot water and rebalance the seasoning.

Can I make the soup ahead?
Yes. Cook it, cool it promptly, and refrigerate it within 2 hours. The flavors can settle as it rests, but taro and vegetables will soften. For the freshest texture, you can prepare the pork broth ahead, refrigerate it safely, and cook the vegetables shortly before serving.

Is sinigang na gabi supposed to be very sour?
It can be, but the ideal sourness is a matter of preference and varies with the tamarind product and household style. Begin with less than the full amount if you are unsure, taste after it simmers, and add more in small increments.

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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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