Stir-fried gai lan is a traditional dish originating from the southern parts of the country. The dish is usually made with a combination of chinese broccoli (gai lan, more related to kale than broccoli), vegetable oil, ginger, garlic, oyster sauce, and Shaoxing wine.
The gai lan leaves are blanched, drained, refreshed under cold water, and drained again. The same process is repeated with the stalks. The ginger and garlic are fried in a wok until golden, and the gai lan stalks are then added to the wok. The mixture is stir-fried, mixed with the leaves, oyster sauce, and wine.