Oyster Sauce Lettuce (蚝油生菜)
蚝油生菜 · háo yóu shēng cài
A Cantonese bistro staple that appears on nearly every dim sum and family dinner table. The key is blanching the lettuce just long enough to stay crisp-tender, then drowning it in a glossy oyster-sauce glaze. It's the fastest way to get a restaurant-quality green vegetable on the table.
Recipe author: HǎoWèi Test Kitchen
Home-cooking research team
Reviewed by HǎoWèi editorial team · Last updated 2026-08-29
Ingredients
- romaine lettuce hearts罗马生菜🛒 local2 large hearts (about 400 g)
- oyster sauce蚝油🏮 asian2 tbsp
- light soy sauce生抽🏮 asian1 tsp
- garlic, minced蒜末🛒 local3 cloves
- sugar糖🛒 local½ tsp
- water or chicken stock水或高汤🛒 local3 tbsp
- sesame oil香油🏮 asian½ tsp
- neutral cooking oil食用油🛒 local1 tbsp
romaine lettuce hearts: Romaine is sturdier than butter lettuce. If unavailable, use bok choy or choy sum.
🌶️ Adjust to your taste
Pick a level and we'll show exactly how much to change — no more "适量".
Spice level
Saltiness
Oiliness
Make it vegetarian
Instructions
1Trim the tough outer base of each lettuce heart, then cut lengthwise into 4 wedges. Wash thoroughly — sand hides in the tight folds.
处理生菜
🔍 Look forVisual: 每瓣底部淡绿、尖端深绿，外层无褐变或萎蔫叶片Each wedge should be pale green at the base, dark green at the tips, with no brown or wilted outer leaves
You know it's right when: 叶片脆挺、弯曲时不软塌Leaves are crisp and taut when you bend them
If using baby bok choy instead, halve lengthwise — no trimming needed.
2Make the sauce: whisk together oyster sauce, soy sauce, sugar, sesame oil, and water in a small bowl until the sugar dissolves.
调蚝油汁
3Bring a large pot of salted water to a rolling boil. Add lettuce, submerge fully, and blanch for exactly 30 seconds.
白灼生菜
🔍 Look for High heat 30 秒 · 30 secondsVisual: 叶片变成鲜艳有光泽的亮绿色，边缘开始微塌Leaves turn a vivid, glossy bright green and begin to wilt slightly at the edges
You know it's right when: 颜色是电光绿——如果变橄榄绿就说明煮过头了Color is electric green — if it turns olive, you've overcooked it
4Remove lettuce with tongs and arrange on a serving plate. Do not drain — the water dripping off is fine.
摆盘
5In the same pot (or a small pan), heat neutral oil over medium. Add minced garlic and fry for 10 seconds until fragrant but not browned.
爆香蒜末
🔍 Look for Medium heat 10 秒 · 10 secondsVisual: 蒜末滋滋作响，释放辛辣焦香Garlic sizzles and releases a sharp, toasted aroma
You know it's right when: 香气尖锐芬芳——如果开始冒烟说明火太大了Aroma is sharp and fragrant — if it starts smoking, it's too hot
Don't skip this step — raw garlic in the sauce tastes bitter.
6Pour in the oyster sauce mixture. Let it bubble for 15 seconds until slightly thickened and glossy.
煮酱汁
🔍 Look for Medium heat 15 秒 · 15 secondsVisual: 酱汁冒泡，勺背挂上光泽的薄层Sauce bubbles and coats the back of a spoon with a glossy sheen
You know it's right when: 酱汁刚好能挂住，不会像水一样稀Sauce has thickened just enough to cling, not run thin like water
7Pour the hot sauce evenly over the lettuce. Serve immediately.
淋汁上桌
Tips
- · 30 seconds is the sweet spot — any longer and the lettuce turns mushy and loses its signature crunch.
- · Never salt the blanching water heavily — the oyster sauce is already salty enough.
- · For a restaurant finish, add a tiny drizzle of sesame oil right before pouring over the lettuce.
- · This dish is naturally gluten-free if you use a GF oyster sauce (most contain wheat).
Sources & references
Quantities, technique notes, and substitution ratios are cross-checked against established Chinese cookery references and standard food-science sources.
- Read our editorial policy
- Fuchsia Dunlop, Land of Plenty: A Treasury of Authentic Sichuan Cooking
- USDA FoodData Central — ingredient nutrition and portion data
- Traditional Chinese family-kitchen practice and regional taste records
Common questions
Is there a vegan substitute for oyster sauce?
Yes — 'mushroom oyster sauce' (often labeled vegetarian/vegan) is sold in most Asian grocers and increasingly in mainstream supermarkets. It behaves 1:1 and adds the same glossy umami. Watch labels if you're also gluten-free; most brands are GF, some aren't.
Source: HǎoWèi substitution engine
What's the difference between light and dark soy sauce?
Light soy (生抽) is the everyday salty seasoning — thin and salty, used in most recipes. Dark soy (老抽) is thicker, darker, slightly sweet, and used mostly for color (braises, fried rice). If you only buy one, get light soy. For dark soy's color: 1 tbsp light soy + a pinch of sugar + a few drops of molasses.
Source: HǎoWèi pantry guide
Why do you cook the aromatics (garlic/ginger) first on low heat?
Aromatics contain oils and sugars that turn bitter if scorched. Gentle heat (low-medium) lets garlic and ginger release their fragrance without browning too fast. If the pan is too hot, garlic goes bitter within seconds — that's why we always add aromatics first, before the main ingredients.
Source: Chinese Cooking Demystified technique library
Ingredient swaps
Can't find an Asian-market staple? Use these.
Swap: oyster sauce
→ hoisin + ½ tsp fish sauce (or soy)
Ratio: 1:1 · Sweeter and thicker; thin with a little water.
Swap: light soy sauce
→ regular soy sauce
Ratio: 1:1 · Slightly saltier — dial salt back by a pinch.
Swap: sesame oil
→ toasted sesame oil (same thing!)
Ratio: 1:1 · Check the label: use toasted (dark), not raw.
Don't make these mistakes
The traps every home cook hits — and how to avoid them.
✗ Skipping the 'rest' step — dressing runs watery.
✓ Fix: Let dressed vegetables sit 5-10 min so flavors marry.
Ways to change it up
One dish, three moods.
- Add mushrooms for a meaty texture
- Finish with toasted sesame seeds for crunch
- Serve with a fried egg for extra protein
🥢 Ask HǎoWèi
Questions about technique, ingredients, substitutions, and flavor — answered from our verified cooking knowledge base.
What to serve with it
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