Vietnamese National Dishes

Cua rang me — Vietnamese crab with tamarind sauce

Name: Cua rang me — Vietnamese crab with tamarind sauce
Prep time: 25 min
Cook time: 25 min
Total time: 50 min
Cuisine: Vietnam
Ingredients: 1 kg live sea crabs, about 2–3 medium, from a reputable seafood seller; 1 L potable water for steaming, discarded; 3 g fine salt; 1 g ground black pepper; 50 g seedless tamarind pulp or unsweetened tamarind concentrate; 150 ml boiling water for extracting tamarind, then strained; 25 ml fish sauce; 35 g granulated sugar; 8 g cornstarch; 15 ml cold water for the slurry; 30 ml neutral oil; 25 g garlic, finely chopped; 50 g shallots, finely chopped; 15 g fresh ginger, finely chopped; 15 g tender inner lemongrass, finely minced; 1 red chili, finely sliced; 20 g spring onion, sliced; 20 g roasted unsalted peanuts, coarsely chopped (optional)

Sweet-sour tamarind glaze clings to tender crab in this lively southern Vietnamese seafood dish. Steam the crabs first, then toss the sections with garlic, shallot, lemongrass, fish sauce and chili so the sauce coats the shells and the exposed meat. Set the platter in the middle of the table with rice or bread for the glossy sauce.

Vietnamese National Dishes

Vietnamese cua rang me crab pieces with glossy tamarind sauce, red chili, lemongrass and scallion Wide serving-table view with rice and bread at the edges. — Cua rang me with a glossy sweet-sour tamarind glaze and aromatic garnish. Wide shared-table composition with rice and bread.

Yield 4 shared portions

Cook 25 minutes

Passive 0 minutes

Total 50 minutes

Calories About 180 kcal per serving

Ingredients ↓

Overview

Cua rang me — Vietnamese crab with tamarind sauce

Cua rang me pairs crab with me, the Vietnamese word for tamarind. The finished sauce is tangy, sweet and savoury, often with chili and aromatic ingredients. Cooks vary the crab species, sauce thickness and cooking sequence: some fry raw crab pieces, while others steam or stir-fry them before adding the glaze. This practical home version steams live crabs first, then quickly coats the sections in a tamarind sauce. It keeps the defining sweet-sour shellfish flavour without claiming to be the only traditional method.

The dish appears in southern Vietnamese cooking and seafood menus, including around Sài Gòn and the Mekong region. It is often eaten by hand, with rice or bread ready to catch the sauce. The exact crab species varies by market; use fresh, legally sourced sea crab from a reliable fishmonger and follow local harvest advisories.

The sauce should taste bright and balanced, not candy-sweet. Tamarind products vary widely in acidity and salt, so use the measured quantities as a starting point and taste the sauce before it touches the cooked crab. Once the crab is glazed, serve it promptly while the shell sections are hot and easy to handle.

Practical

Keys to successChoose live crabs that show leg movement; do not cook crabs that have arrived dead. Keep raw crab away from cooked foods and use clean tongs and a clean serving platter after steaming. Check the largest crab section: the meat should be firm, pearly and opaque, never translucent. Strain the tamarind well and stir the starch slurry again immediately before adding it. Toss the cooked crab just long enough for the glaze to cling; prolonged simmering can toughen the meat.

Ingredients

Crab

1 kg live sea crabs, about 2–3 medium, from a reputable seafood seller
1 L potable water for steaming, discarded
3 g fine salt
1 g ground black pepper

Tamarind glaze

50 g seedless tamarind pulp or unsweetened tamarind concentrate
150 ml boiling water for extracting tamarind, then strained
25 ml fish sauce
35 g granulated sugar
8 g cornstarch
15 ml cold water for the slurry

Aromatics and finish

30 ml neutral oil
25 g garlic, finely chopped
50 g shallots, finely chopped
15 g fresh ginger, finely chopped
15 g tender inner lemongrass, finely minced
1 red chili, finely sliced
20 g spring onion, sliced
20 g roasted unsalted peanuts, coarsely chopped (optional)

Method

Keep live crabs chilled in a breathable container until cooking; do not submerge them or seal them airtight. Choose crabs showing leg movement and reject any that are dead on arrival or have damaged shells. Keep them separate from ready-to-eat food.
Bring 1 L water to a boil in a large covered pot with a steaming rack above the water. Using tongs, place the crabs in the basket, cover and steam for at least 12 minutes. Check the largest crab: its meat should be firm, pearly and opaque, not translucent. If the center remains translucent, steam for 2–3 minutes more and check again. The 12-minute reference comes from blue-crab guidance and may need adjustment for species and size.
Transfer cooked crabs with clean tongs to a clean tray and let them cool only until safe to handle, about 5 minutes. Remove the top shell and gills; discard the gills and viscera. Cut the bodies into manageable sections and crack the claws slightly. Wash hands, board, knife and work area after raw-crab handling; never return cooked crab to a raw-seafood tray.
Put the tamarind in a bowl, add 150 ml boiling water and mash for 2 minutes. Strain through a fine-mesh strainer, pressing the pulp to extract the liquid; discard the seeds and fibers. Stir in the fish sauce and sugar. Mix the cornstarch with 15 ml cold water in a separate bowl to make a smooth slurry.
Season the crab sections lightly with the measured salt and pepper. Heat the oil in a wok over medium-high heat. Add the garlic, shallot, ginger, lemongrass and chili; stir for about 1 minute until fragrant without browning the garlic.
Add the crab sections and toss for 2 minutes to coat them in the aromatics. Pour in the tamarind mixture, bring to a steady simmer and turn the pieces so the sauce reaches the cut surfaces. Simmer for 3 minutes.
Stir the slurry again, pour it into the wok in a thin stream and toss for 1–2 minutes until the sauce turns glossy and clings to the crab. Add a splash of water if it thickens before the crab is hot throughout. Do not taste with a utensil that touched raw crab.
Turn off the heat, scatter over the spring onion and optional peanuts, and serve immediately on a clean platter with rice or bread. Refrigerate leftovers within 2 hours (within 1 hour above 32°C / 90°F); reheat thoroughly until steaming hot.

Practical

Practical guidance

If using frozen crab, thaw it in the refrigerator overnight and cook it promptly. Never thaw seafood on the counter. Tamarind paste can differ greatly in strength, so taste the strained liquid before adding the starch and use a splash of water if it is intensely sharp. For a thicker restaurant-style coating, use the full slurry; for a lighter sauce, add half first and more only if needed. Keep serving accompaniments separate from the raw-crab preparation area.

Troubleshooting

Sauce is too sharp: add a teaspoon of sugar at a time and taste again before adding the crab. Sauce is too sweet: add a little tamarind liquid or water; avoid adding extra fish sauce until you check the salt level. Sauce is lumpy: whisk the starch with cold water until smooth, then stir it into the simmering sauce in a thin stream. Crab meat seems translucent: stop glazing and steam the largest pieces for a few more minutes until firm, pearly and opaque. Crab meat turns tough: keep the sauce at a brief simmer and take the wok off the heat as soon as the glaze clings.

FAQ

Can I use cooked crab from the fish counter? Yes. Choose crab kept chilled and physically separate from raw seafood. Add it after the aromatics and toss just long enough to heat through and coat it; the nutrition estimate assumes whole crab and may differ. What can I use instead of fresh tamarind pulp? Unsweetened tamarind concentrate works well. Start with the measured amount, dilute it in hot water and adjust the balance before thickening because brands vary in acidity and salt. Do I eat the crab shell? No. The shell helps carry the sauce, but crack it to reach the meat and discard the shell and gills. A crab cracker makes the claws easier to open.

Nutrition per serving

Serving sizeOne quarter of the batch; shell weight is included in the raw crab amount
CaloriesAbout 180 kcal
Carbohydrate15 g
Protein12 g
Fat9 g
Fibre1 g
SodiumAbout 700 mg

Allergens and safety

Contains crustaceans (crab) and fish (fish sauce); optional peanuts add a peanut allergen. Check labels for additional ingredients and cross-contact. Buy live crabs from a reputable seller, keep them chilled and reject any that are dead on arrival. Cooked crab flesh should be firm, pearly and opaque. The 12-minute steaming reference is based on blue-crab guidance and may need adjustment for crab species and size; check the largest crab and continue steaming if any center remains translucent. Keep raw crab separate from cooked food, wash hands and utensils after handling it, and refrigerate leftovers within 2 hours (1 hour above 32°C / 90°F).

Finish the dish

Put finger bowls and napkins on the table; tamarind glaze is delicious but delightfully messy.
Spoon any remaining sauce over the crab just before serving, with rice or bread alongside.

Cua rang me — Vietnamese crab with tamarind sauce

Practical

Ingredients

Crab

Tamarind glaze

Aromatics and finish

Method

Practical

Practical guidance

Troubleshooting

FAQ

Nutrition per serving

Allergens and safety

Finish the dish

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