Choy Sum (Chinese Green Cabbage)
Brassica rapa var. parachinensisA Chinese cabbage variety known for its thin green stalks and small yellow flower buds. One of the most common greens in Cantonese cuisine; the stalk, leaves, and flowers are all eaten together.
What Is Choy Sum?
Choy sum is a Chinese cabbage variety (Brassica rapa var. parachinensis) known for its thin, delicate green stalks and small yellow flower buds. It is one of the most fundamental greens of Cantonese cuisine.
It is a member of a family close to other Chinese greens like pak choi and gai lan, but choy sum's distinguishing feature is that the small yellow flowers at the tip of the stalk are also edible. Its taste is mildly sweet with a fine sharpness typical of the mustard family.
Nutritional Values of Choy Sum
100 g of raw choy sum contains around 13 kcal of energy; it is rich in vitamin A and vitamin C. Values are approximate.
How Should Choy Sum Be Consumed?
Choy sum can be considered part of a balanced diet as a low-calorie source of vitamins; it is generally consumed briefly cooked.
This information is general; choy sum is a food, not a substitute for medical treatment.
How to Choose Choy Sum?
A good choy sum has crisp-fresh stalks, vivid green leaves, and if present, flower buds that have not yet opened. Yellowed leaves or wilted stalks should be avoided.
- Stalks should look crisp and fresh
- Leaves should be vivid green
- Flower buds (if present) should not yet be open
How to Store Choy Sum?
Choy sum can be stored in the refrigerator wrapped in a damp paper towel for 3-4 days; since it wilts quickly, it is recommended to consume it as fresh as possible.
Using Choy Sum in the Kitchen
Choy sum is most often used quickly stir-fried with garlic over high heat, with oyster sauce, or in soups; its short cooking time preserves its crunch and color.
What Is the Difference Between Choy Sum and Pak Choi?
Pak choi has thick-fleshy white stalks and spoon-shaped leaves, and its flower bud is generally not eaten; choy sum has thin green stalks, is more delicate, and is harvested with its flowers. Both belong to the same broad Brassica family.
Frequently Asked Questions
How is choy sum cooked?
The most common method is to stir-fry it quickly with garlic over high heat for 1-2 minutes, or to briefly blanch it and serve with oyster sauce.
Is choy sum's flower bitter?
No; the flower buds have a mildly sweet taste and are consumed without issue together with the stalks and leaves.
Is choy sum available in Turkey?
It is not widespread; it can be found in Asian markets and bazaars.