Direct answer: Cantonese steamed scallops with glass noodles cook evenly when the noodles are soaked until flexible, each scallop sits in a shallow noodle nest, and the garlic is gently cooked before steaming. Steam large sea scallops over strong steam for 4 to 6 minutes, then check that they are pearly, opaque and at least 145°F/63°C.
Key takeaways
- Use dry-packed sea scallops of similar size.
- Soak mung bean noodles but do not boil them first.
- Cook garlic over low heat so it stays sweet, not bitter.
- Arrange one scallop per food-safe shell or shallow dish.
- Start timing only after strong steam is established.
What are garlic steamed scallops with glass noodles?
This Cantonese seafood dish places a scallop over mung bean vermicelli, tops it with garlic sauce, and steams everything together. The noodles absorb scallop juices and seasoning while the shell keeps each portion compact.
You do not need to shuck live scallops at home. Fresh or properly thawed dry-packed sea scallops can be placed in cleaned food-grade scallop shells, small heatproof saucers or one shallow heatproof plate.
Ingredients for 6 scallops
- 6 large sea scallops, about 12 ounces/340 g total
- 2 ounces/55 g dried mung bean vermicelli
- 8 garlic cloves, finely minced
- 2 tablespoons neutral oil
- 1 tablespoon light soy sauce
- 1 teaspoon oyster sauce
- 1 teaspoon Shaoxing wine
- 1/2 teaspoon sugar
- 2 tablespoons water
- 1 teaspoon toasted sesame oil, optional
- 2 scallions, finely sliced
- 1 small red chili, thinly sliced, optional
Use six cleaned food-safe shells or six shallow heatproof saucers. Preparation takes about 25 minutes and steaming takes 4 to 6 minutes.
Choose and thaw scallops safely
Dry-packed scallops contain no added soaking solution and usually brown or steam more predictably than wet-packed products. Choose pieces that smell mild and look moist but not milky or slimy.
Thaw frozen scallops overnight in the refrigerator, or in a sealed bag under cold running water when cooking immediately. Never thaw seafood on the counter. Remove the small tough side muscle if it is still attached and pat every scallop dry.
Step 1: soak the glass noodles
Put mung bean vermicelli in a bowl and cover with room-temperature water for 15 to 20 minutes. The strands should bend easily but still feel slightly firm. Drain thoroughly and cut them into manageable 4-inch/10-cm lengths.
Do not boil the noodles before steaming. Fully cooked noodles absorb less scallop juice and can become mushy during the final steam.
Step 2: make sweet golden garlic
Heat neutral oil in a small pan over low heat. Add half the minced garlic and cook for 60 to 90 seconds, stirring constantly, until pale gold. Immediately remove the pan from the heat.
Stir in the remaining raw garlic. This half-cooked method balances sweet nuttiness with fresh garlic aroma. Dark-brown garlic is bitter, so stop before it reaches that stage.
Step 3: mix the seasoning
Combine soy sauce, oyster sauce, Shaoxing wine, sugar and water. Stir until the sugar dissolves, then mix in the garlic and its oil. Add optional sesame oil only after the pan has cooled slightly.
The sauce should taste concentrated because the scallops release liquid during steaming. Do not add salt before tasting the soy and oyster sauces.
Step 4: assemble equal portions
Set shells or saucers on a heatproof platter that fits inside the steamer. Divide noodles into six loose nests and place one dry scallop on each. Spoon about 2 teaspoons garlic sauce over every portion.
Keep the noodle nests shallow. A thick wad insulates the scallop and cooks unevenly. Leave space between portions so steam can circulate.
Step 5: prepare strong, steady steam
Bring at least 2 inches/5 cm water to a full boil in a covered wok or steamer. The water must remain below the platter. Carefully load the platter and cover immediately.
If using a metal lid that drips heavily, wrap it with a clean towel secured far from the flame. Never allow fabric to hang near a burner.
Step 6: steam only until just cooked
Steam large scallops over medium-high heat for 4 minutes before checking. Pieces thicker than 1 1/4 inches/3 cm may need 5 to 6 minutes.
The scallops should turn pearly and opaque and feel gently springy. FDA seafood guidance uses 145°F/63°C as a safe internal temperature. Check the thickest piece with an instant-read thermometer; continue in 30-second intervals if necessary.
Step 7: garnish and serve immediately
Remove the platter with dry oven mitts and rest for 1 minute. Scatter scallions and optional chili over the portions. Spoon any juices from the platter back onto the noodles.
Serve immediately. Scallops continue cooking in hot shells, so holding them in a covered steamer makes them firm.
Can I make this without shells?
Yes. Arrange six noodle nests on one shallow heatproof plate, leaving 1 inch/2.5 cm between them. Place a scallop on each and steam exactly as directed.
Decorative shells must be sold or confirmed as food-safe and thoroughly cleaned. Do not use craft shells, beach-collected shells or damaged shells that may contain contaminants or sharp fragments.
Substitutions
Different noodles
Thin sweet-potato glass noodles can work but require the package's recommended soaking time. Rice vermicelli has a different texture and may soften faster.
Alcohol-free sauce
Replace Shaoxing wine with water plus 1/4 teaspoon rice vinegar. Do not replace it with a full teaspoon of vinegar.
Without oyster sauce
Use vegetarian mushroom sauce or add another teaspoon light soy sauce and 1/2 teaspoon sugar. Disclose mollusk, soy, wheat and sesame allergens as applicable.
Using shrimp
Peeled jumbo shrimp can replace scallops. Arrange one or two per noodle nest and cook until opaque and 145°F/63°C.
Common mistakes
The scallops become rubbery
They were steamed too long or left covered after cooking. Use equal sizes, check at 4 minutes and serve promptly.
The garlic tastes bitter
The oil was too hot or the garlic browned too far. Cook over low heat and remove it when pale gold.
The noodles are mushy
They were boiled first or soaked too long. Soak only until flexible and drain well.
The noodles stay hard
The nest was too dense or contained too little sauce. Loosen the strands and distribute the measured liquid evenly.
The dish becomes watery
Scallops were wet-packed or not dried. Pat them thoroughly and use only the stated sauce quantity.
Food safety
Keep scallops at 40°F/4°C or below and prevent raw seafood juices from touching cooked food. Wash hands, utensils and work surfaces after handling them.
Steam until scallops reach 145°F/63°C. Refrigerate leftovers within 2 hours and use within 3 to 4 days, though freshly steamed scallops have the best texture.
Make-ahead and reheating
Prepare the garlic sauce and refrigerate it for up to one day. Soak noodles and assemble no more than 30 minutes before steaming; keep assembled portions refrigerated.
Reheat leftovers gently over steam for 2 to 3 minutes until 165°F/74°C. Texture will be firmer than freshly cooked seafood.
Related lessons
For another precise seafood steaming method, see our Cantonese steamed fish guide. Our har gow tutorial explains shrimp preparation and dim sum workflow.
FAQ
Are glass noodles the same as rice noodles?
No. Mung bean glass noodles become translucent and have a springier texture than opaque rice vermicelli.
Can I use frozen scallops?
Yes. Thaw safely in the refrigerator and dry thoroughly before assembling.
Why cook only half the garlic?
Cooked garlic adds sweetness, while raw garlic retains a sharper aroma. Combining them creates a fuller flavor.
Can I steam all portions on one plate?
Yes. Keep separate shallow noodle nests and allow steam to circulate around the platter.
How do I know scallops are done?
They should be pearly, opaque and gently firm, with an internal temperature of at least 145°F/63°C.
Conclusion
Reliable steamed scallops depend on flexible but uncooked noodles, pale-golden garlic, strong steam and a short cooking time. Check the thickest scallop rather than relying only on the clock. Our homemade Chinese cooking courses demonstrate seafood doneness, garlic heat control and steamer setup visually.