Chinese Crab with Ginger and Scallions

Chinese ginger scallion crab is a Cantonese-inspired stir-fry of crab pieces cooked with fresh ginger, scallions, garlic, and a savory Shaoxing-soy sauce. The quick, aromatic sauce clings to the shells and seasons the sweet crab meat; regional and family versions vary, so this is one practical home-style approach rather than the only way to make it.

Ingredients

2 lb (900 g) raw crab sections, shell-on, cleaned and cracked into manageable pieces
2 tbsp (30 ml) neutral high-heat oil, such as canola or peanut oil
3 oz (85 g) fresh ginger, peeled and cut into thin matchsticks
4 scallions, about 4 oz (115 g), cut into 2-inch (5 cm) lengths; separate white and green parts
3 garlic cloves, about 15 g, finely chopped
2 tbsp (30 ml) Shaoxing rice wine
1 tbsp (15 ml) light soy sauce
1 tbsp (15 ml) oyster sauce
½ tsp (2 g) granulated sugar
½ cup (120 ml) unsalted chicken stock or water
1 tbsp (8 g) cornstarch
2 tbsp (30 ml) cold water, for the cornstarch slurry
¼ tsp (0.5 g) ground white pepper
1 tsp (5 ml) toasted sesame oil

Instructions

Prepare the crab and sauce. If the crab has not already been cleaned and cracked, ask the fishmonger to prepare it; use raw crab sections for the cooking times below. Pat the pieces dry and remove any loose shell fragments. In a small bowl, stir together the Shaoxing wine, soy sauce, oyster sauce, sugar, stock, and white pepper. In a second cup, mix the cornstarch with the cold water until smooth. Keep both near the stove because the stir-fry moves quickly.
Heat the wok. Set a large wok or heavy, wide skillet over medium-high heat for about 2 minutes. Add the neutral oil and swirl to coat the cooking surface. The oil should shimmer but should not smoke heavily. If your pan is smaller than the crab pile, cook in two batches so the pieces can make contact with the hot pan rather than steam from the start.
Cook the aromatics. Add the ginger and scallion whites and stir-fry for about 1 minute, until fragrant. Add the garlic and stir for 30 seconds; keep it moving so it does not burn. Ginger gives the sauce a warm, clean bite, while the scallion whites soften and flavor the oil.
Brown the crab. Add the crab pieces and turn them with tongs for about 4 minutes, giving the cut sides a chance to touch the pan. Take care around sharp shell edges. Pour in the prepared wine-and-stock mixture and turn the pieces once more so the liquid reaches the shells.
Cover and cook through. Cover the wok or skillet and cook for 8 minutes, turning the crab once halfway through if practical. Keep the heat at a steady simmer rather than a hard boil. Check the thickest piece of crab meat with a food thermometer, placing the probe in the meat and avoiding contact with shell. USDA FSIS lists 145°F (63°C) as the safe minimum internal temperature for fish; use 145°F (63°C) as the minimum check here as well, and cook longer if needed. The meat should also be opaque and firm. If the pan looks dry before the crab is done, add 1–2 tablespoons (15–30 ml) water and cover again.
Thicken and finish. Stir the cornstarch slurry again, then pour it into the pan while turning the crab. Simmer uncovered for about 2 minutes, until the sauce is glossy and lightly thickened. Stir in the scallion greens and sesame oil, then turn off the heat. Spoon sauce over the crab and serve promptly with bowls and a shell bowl at the table.

Tips

Choose crab that suits the recipe. Dungeness, blue crab, and other meaty crabs work well when cut into sections. Ask for raw, cleaned, cracked pieces to make the cooking manageable. If the seller only has whole crab, have it prepared there rather than trying to cut through hard shells at home.
Use a sensible Shaoxing substitute. Shaoxing rice wine brings a dry, rounded aroma. If it is hard to find, use the same amount of dry sherry. For a nonalcoholic version, replace it with additional stock and a small splash of rice vinegar; the result will be less aromatic and a little brighter, so add vinegar gradually.
Keep the pan hot, but control the sauce. A crowded or cool pan releases liquid and makes the crab stew before it browns. Work in batches if needed, then return all the pieces to the pan for the covered cooking. If the sauce becomes too thick, loosen it with a tablespoon of water or stock at a time.
Protect the crab from overcooking. Piece size and whether the crab starts refrigerator-cold affect the timing. Use the thermometer rather than relying on color alone, and stop as soon as the thickest meat reaches the safe minimum and turns opaque. Pre-cooked crab needs a different, gentler method; see the FAQ below.

Serving Suggestions

Serve the crab immediately, while the sauce is hot and the scallions are still bright. Steamed jasmine rice is a natural partner: it catches the ginger, wine, and shellfish juices without competing with the crab. Plain steamed rice is especially useful if the sauce is punchy, while brown rice offers a firmer, nuttier contrast.

For a fuller meal, add a simple vegetable side such as blanched Chinese broccoli, bok choy, or snow peas. Dress the vegetables lightly with oil and salt, or serve them plain so the crab remains the centerpiece. Put out small bowls for shells, napkins, and seafood crackers or picks if available. A spoon helps diners collect the sauce and rice, and serving the crab in a shallow platter makes it easier to reach the pieces without losing the juices.

Variations

Black pepper crab: Add 1 teaspoon (2 g) coarsely ground black pepper with the garlic, and increase it to taste. This makes the sauce warmer and more pepper-forward. Keep the ginger and scallions; they balance the stronger seasoning.

Chili ginger crab: Add 1–2 sliced red chilies with the ginger, or stir in 1 teaspoon (5 ml) chili oil at the end. For a milder table, serve chili oil on the side so each person can season their own portion.

Use cooked crab: Fully cooked crab should not be cooked for the full raw-crab time, or its meat can turn dry and stringy. Make the sauce with the aromatics and stock first, simmer it briefly, then add cooked crab pieces just long enough to heat them through. Check the thickest meat reaches 165°F (74°C) when reheating leftovers; for already-cooked crab served immediately, warm gently and avoid prolonged simmering.

Make it without oyster sauce: Replace the oyster sauce with 2 teaspoons (10 ml) light soy sauce and 1 teaspoon (5 ml) water. The sauce will be saltier and less rounded, so taste before adding any extra soy. A vegetarian mushroom-based sauce can also be used in the same quantity, though it will bring an earthy flavor rather than oyster sauce’s briny savoriness.

Storage and Reheating

Refrigerate leftover crab within 2 hours of cooking, in a shallow airtight container. Remove any meat from the shells if that makes it easier to store and reheat, and keep the meat with the sauce so it does not dry out. Cooked crab keeps for 3–4 days in the refrigerator. Because shell fragments can puncture thin bags, use a sturdy sealed container rather than a flimsy sandwich bag.

For best texture, reheat only the amount you plan to eat. Put the crab and sauce in a covered skillet with a tablespoon or two of water, then warm over low to medium-low heat, turning the pieces until evenly hot. Reheat leftovers to 165°F (74°C), checked in the thickest piece of meat with a food thermometer. Avoid repeated reheating, which can make the crab tough. You can freeze cooked crab in a freezer-safe airtight container for about 2–3 months for best quality; thaw it in the refrigerator and reheat as above. Do not leave cooked crab at room temperature for more than 2 hours.

Frequently Asked Questions

Can I use frozen crab?
Yes. Thaw raw crab sections in the refrigerator, preferably overnight, then drain and pat them dry before cooking. If they are still icy or very wet, they will lower the pan temperature and dilute the sauce. Frozen crab that is already cooked can also be used, but add it near the end and warm it gently rather than following the raw-crab cooking time.

Can I make this without a wok?
Yes. A wide, heavy skillet with a lid works well. The important points are enough surface area to brown the pieces, a lid for the covered cooking, and space to stir without spilling. If your skillet is small, brown the crab in batches and combine it with the sauce for the covered portion.

How do I know when crab is done?
Check the thickest accessible part of the meat with a food thermometer and cook it to at least 145°F (63°C) for this recipe. The meat should look opaque and feel firm rather than translucent or soft. Avoid touching the thermometer probe to shell, which can give an inaccurate reading. If the meat has not reached temperature, cover the pan and continue cooking briefly before checking again.

Is Shaoxing wine essential?
No. It gives the dish a distinctive dry, savory aroma, but dry sherry is a practical substitute in the same amount. For a version without alcohol, use more stock and a little rice vinegar. That substitution changes the flavor: it is less fragrant and slightly sharper, but still works with the ginger, scallions, and crab.

Can I prepare any part ahead?
You can mix the sauce, make the cornstarch slurry, and cut the ginger and scallions several hours ahead; cover and refrigerate them separately. Keep raw crab refrigerated and cook it the day you buy or thaw it. The finished dish is best served right after cooking because crab meat loses tenderness when held hot or reheated repeatedly.

What should I do if the sauce is too salty?
Stir in a little hot water or unsalted stock, one tablespoon (15 ml) at a time, and taste again. A little extra scallion or a larger serving of plain rice can also balance the seasoning. Avoid adding more sugar as the first fix; it changes the sauce’s balance without removing salt.

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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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