How to Cook Sinigang Step by Step

Sinigang is a Filipino sour soup, commonly made with pork, tamarind broth, and vegetables such as radish, eggplant, and leafy greens. This version gives you a steady, step-by-step method for tender pork and a broth you can adjust to your preferred level of sourness; regional and family versions use different meats, vegetables, and souring ingredients.

Allow about 25 minutes to prepare the ingredients and roughly 1 hour 39 minutes to cook the soup. Set out a large heavy pot, a knife and cutting board, a ladle, and a food thermometer. Serve sinigang hot, with steamed rice if you like.

What You’ll Need

2 lb (900 g) pork shoulder, cut into 1½-inch (4 cm) chunks. Pork ribs also work; they may need a little longer to become tender. Choose pieces with some fat for a fuller broth.
10 cups (2.4 L) water to start. Keep a little extra hot water nearby in case you want to replace broth lost to evaporation.
1 medium yellow onion (about 150 g), peeled and cut into wedges.
2 medium tomatoes (about 300 g), cut into wedges.
1 medium daikon radish (about 300 g), peeled and cut into ½-inch (1 cm) half-moons.
1 cup (150 g) peeled taro, cut into bite-size chunks. Taro is optional; it thickens the broth slightly as it softens.
1 medium Asian eggplant (about 250 g), cut into 2-inch (5 cm) pieces. Globe eggplant is a practical substitute; cut it into similar-sized chunks.
1 cup (125 g) green beans, trimmed and cut into 2-inch (5 cm) lengths.
4 packed cups (120 g) kangkong, also called water spinach, rinsed and cut into short lengths. If it is hard to find, use 4 cups (120 g) baby spinach. Spinach softens faster and has a more delicate texture, so add it at the very end.
One souring option: 2 tablespoons (30 ml) tamarind concentrate or paste to start, or 1 packet (about 40 g) sinigang tamarind soup mix, added according to its package directions. For a traditional whole-tamarind option, use 8 oz (225 g) fresh or frozen tamarind pods, simmer them until soft, then mash and strain the pulp. Tamarind varies in strength, so adjust the amount to taste.
1 tablespoon (15 ml) fish sauce to start, plus more to taste. Use salt instead if you need a fish-free version; the broth will have less savory depth.
½ teaspoon (1 g) ground black pepper and up to 1 teaspoon (6 g) salt, adjusted at the end. Packaged soup mix can already be salty, so do not add all the salt at the start.

Step-by-Step

Prepare the pork and vegetables. Cut the pork into pieces close to 1½ inches (4 cm) so they cook at a similar rate. Rinse and cut the vegetables as listed, keeping the leafy greens separate from the firmer vegetables. If using fresh tamarind pods, set them aside for the broth step. Wash your hands, knife, and board after handling raw pork, and keep the pork separate from ready-to-eat food.
Start the broth. Put the pork, water, onion, and tomatoes in a large pot. Bring the liquid to a boil over medium-high heat, which should take about 8 minutes. As foam rises, skim it off with a spoon for a clearer-looking broth. Do not worry if a little remains; it does not prevent the soup from cooking properly.
Simmer until the pork is tender. Lower the heat so the broth simmers gently, partially cover the pot, and cook for 65 minutes. A gentle simmer means occasional small bubbles, not a vigorous boil. Check the water level once or twice; if the pork is no longer mostly submerged, add a little hot water. The pork should be easy to pierce with a fork but still hold its shape.
Check pork safety and tenderness. Insert a food thermometer into the center of the largest pork piece, without touching bone. USDA FSIS sets 145°F (63°C) with a 3-minute rest as the safe minimum for whole cuts of pork. For soup, the pork is usually simmered well beyond that temperature to become tender; if it is still tough, keep it at a gentle simmer and check again after 10 minutes. Leave the pot off the heat for at least 3 minutes before serving.
Add the tamarind souring ingredient. If using tamarind concentrate or paste, stir in 2 tablespoons (30 ml). If using soup mix, add about half the packet first, stir until dissolved, and follow the package directions for the rest. For fresh tamarind, simmer the pods in a small saucepan with enough water to cover until soft, about 10 minutes; mash, strain the pulp, and stir it into the soup. Taste the broth before adding more. Starting gradually helps avoid a sharp, overly sour soup.
Cook the taro and radish. Add the taro, if using, and simmer for 12 minutes. Add the daikon and cook for 7 minutes more. These vegetables need time to soften, while holding their shape better when added after the pork has had a long head start. If your radish pieces are thicker than ½ inch (1 cm), they may need an extra few minutes.
Add the eggplant and green beans. Stir them into the pot and simmer for 5 minutes. Check a piece of each: the eggplant should be tender but not disintegrating, and the beans should be cooked through while retaining some bite. If they are still too firm, simmer for another 1–2 minutes.
Finish with leafy greens and season. Add the kangkong and simmer for about 2 minutes, just until wilted. Baby spinach needs only about 30–60 seconds. Stir in the fish sauce and black pepper, then taste the broth. Add more tamarind for sourness, fish sauce or salt for savoriness, or a splash of hot water if the flavor is too concentrated. Turn off the heat and rest the pot for at least 3 minutes before serving.
Serve and store safely. Ladle pork, vegetables, and broth into bowls. Steamed rice is a common accompaniment and can be served on the side. Refrigerate leftovers within 2 hours in shallow, covered containers; cooked sinigang keeps for 3–4 days in the refrigerator. Reheat leftovers to 165°F (74°C), checking with a food thermometer, and add a little water if the broth has thickened.

Common Mistakes

Boiling the pork hard. A rolling boil can make the broth cloudy and may break delicate vegetables apart. After the initial boil, lower the heat and keep only a gentle simmer.
Adding all the souring ingredient at once. Tamarind paste, fresh pulp, and soup mixes vary in intensity. Add a portion, taste the broth, and increase it in small amounts. You can add more sourness later, but it is difficult to undo an overly sour pot.
Putting every vegetable in at the beginning. Long-cooked greens turn limp, and eggplant can collapse. Add vegetables in stages according to how long they need to soften.
Seasoning before accounting for the mix. Packaged sinigang mix and fish sauce may both contain plenty of salt. Wait until the broth is sour enough, then adjust its saltiness at the end.
Expecting tough pork to soften by boiling harder. Toughness usually means the connective tissue needs more time. Keep the soup at a gentle simmer and check every 10 minutes instead of turning up the heat.

Tips

Cut evenly. Similar-sized pork chunks and vegetables cook more predictably. Keep radish pieces no thicker than about ½ inch (1 cm) if you want them tender on the stated schedule.
Build sourness in layers. The broth should taste noticeably tangy, but it should still have savory pork and tomato flavor. Taste a spoonful after each addition of tamarind, rather than judging the sourness from its smell.
Use the greens you can get. Kangkong is a familiar choice, but baby spinach is widely available and works well. Add sturdier leafy greens a little earlier; add tender spinach at the last moment so it does not disappear into the broth.
Choose another protein if desired. Pork is used here, but sinigang is also made with beef, shrimp, fish, and other ingredients. Cooking time and the point at which you add the protein change with the choice; shrimp and fish generally need much less time than pork.
Make the broth easier to adjust. Before adding extra salt, take a small ladleful of broth into a cup and stir in a little tamarind or fish sauce to preview the flavor. This gives you a low-risk way to decide what the whole pot needs.
Expect the broth to change after chilling. Pork fat may firm on the surface in the refrigerator, and taro can make the soup thicker. Remove excess solid fat if you prefer, then reheat gently with a splash of water and adjust the seasoning again.

Troubleshooting

The soup is too sour: Add hot water a little at a time, then taste again. A small amount of fish sauce can restore savory balance, but it will also add salt. If the pot is very sour, serve it with plenty of plain rice and avoid adding more tamarind.

The soup tastes flat: First check whether it needs salt or fish sauce; sour broth can still taste underseasoned. Add a small amount, stir, and taste. If it is savory enough but lacks tang, add tamarind in 1-teaspoon (5 ml) increments for concentrate, or a small spoonful of prepared pulp.

The pork is still chewy: Keep it covered at a gentle simmer and cook in 10-minute increments. Add hot water if necessary to keep the meat partly submerged. Do not add the most delicate vegetables until the pork is tender, or they may overcook while you wait.

The vegetables are mushy: They were likely cut too small or added too early. The pot is still usable: serve the vegetables carefully and avoid stirring more than necessary. For the next batch, keep the pieces larger and follow the staggered order in the steps.

The broth is too salty: Add hot water in small amounts and taste after each addition. If the flavor becomes too diluted, add a little more tamarind and tomato, but do not add more soup mix or fish sauce until you have tasted the corrected broth.

The soup is oily: Skim visible fat from the surface with a spoon. For an easier finish, chill the soup and lift off the solidified fat before reheating; this is optional and will make the broth leaner.

Frequently Asked Questions

What does sinigang taste like?
Sinigang is savory and distinctly sour, usually with a light sweetness from tomatoes and vegetables. The exact balance depends on the souring ingredient and how much fish sauce or salt you use.

Can I make sinigang without a packet mix?
Yes. Use tamarind concentrate or paste, or simmer fresh or frozen tamarind pods until soft, then mash and strain the pulp. Add it gradually and taste as you go; a packet mix is convenient but may also contain salt and other seasonings.

Can I use another cut of pork?
Yes. Pork ribs, shoulder, and other stew-friendly cuts can work. Leaner cuts may become dry or firm if cooked for a long time, while bone-in ribs can take longer to turn tender. Use a thermometer for safety and check tenderness before adding the vegetables.

Can I make sinigang ahead?
Yes. Cool and refrigerate the soup within 2 hours, then keep it for 3–4 days. Reheat it to 165°F (74°C). The vegetables will soften further during storage and reheating, so you can also cook the broth and pork ahead, then add fresh vegetables when reheating.

Can I freeze leftover sinigang?
Yes. Freeze it in airtight, freezer-safe containers, leaving space for expansion, and thaw it in the refrigerator before reheating. The pork and broth freeze well, though eggplant and leafy greens may become softer. Reheat to 165°F (74°C) and adjust the broth with water or seasoning if needed.

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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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