
Blanched Choy Sum (Bai Zhuo Cai Xin)
白灼菜心 · cantonese cuisine · Canton
Blanched greens (baizhuo) are a classic Cantonese-style way to serve vegetables simply. A quick dip in salted, oiled boiling water keeps the choy sum vivid green and crisp, and a warm sauce poured over top adds savory flavor without masking the vegetable's natural sweetness. The source notes that the root ends of choy sum are tough and should be trimmed first, and warns against over-blanching, which makes the stems lose their pleasant bite.
Nutrition & allergens
Contains:SesameSoyWheat
Some ingredients are not yet allergen-surveyed; this label is not exhaustive.
Per serving (4 servings)
- Energy (kcal)
- 81.3(Main ingredients only; seasoning not counted)
- Protein (g)
- Unknown
- Fat (g)
- Unknown
- Carbs (g)
- 3.7(Main ingredients only; seasoning not counted)
- Sodium (mg)
- Unknown
Estimated from verified ingredient data for the original formula — not lab values, and one dish is not a full meal.
bai cai tai [ cai tai , cai xin ]白菜苔[菜苔,菜心]
3.53 oz — root ends trimmed, washed

0.74 oz

1.2 oz

to taste

0.46 oz

salt盐
0.07 oz

0.49 oz
Techniques you'll use
- Blanching (chao shui) ↗
Par-cook in boiling water to clean, tighten, or prep ingredients.
- Aromatic blooming (bao xiang) ↗
Bloom ginger, garlic, and chili in hot oil to build the aroma base.
Steps
- 1
Step 1

Trim off the tough root ends of the choy sum and wash it well. Mince the garlic.
✅ Done when: The choy sum is clean with no fibrous root ends remaining, and the garlic is evenly minced.
- 2
Step 2

Make the sauce: stir together 2 spoonfuls of soy sauce, 1 spoonful of oyster sauce, a pinch of sugar, and 1 spoonful of sesame oil until well combined. Set aside.
✅ Done when: The sauce is uniform in color with the sugar fully dissolved.

Bring a pot of water to a boil and add a little salt and 1 spoonful of cooking oil. Blanch the choy sum in the boiling water for 2 minutes, then remove and drain well.
✅ Done when: After 2 minutes, the choy sum is vivid green and just tender, and has been drained of excess water.

Heat oil in a pan and saute the minced garlic until fragrant. Pour in the sauce, bring to a boil over high heat, then turn off the heat and pour the sauce over the choy sum.
✅ Done when: The garlic smells fragrant and the sauce has just come to a boil before being poured over the greens.
- 5
Step 5

Serve the blanched choy sum, light, nutritious, and attractive on the plate.
✅ Done when: The greens are glossy with sauce, bright green, and ready to serve.