Gai lan with oyster sauce is a Cantonese dish commonly served in dim sum restaurants and as a side in Chinese cuisine. Gai lan, also known as Chinese broccoli, is characterized by thick green stems and glossy leaves.
The dish consists of briefly blanched or steamed gai lan topped with a sauce made from oyster sauce, sometimes accompanied by a drizzle of oil or fried garlic. Its flavor profile combines the slightly bitter, vegetal notes of gai lan with the saline, umami-rich sweetness of oyster sauce.