1. Rinse and drain leaf mustard, slice off both ends, then slice into three sections.
2. Add oil in a heated wok, sauté ginger slices until fragrant, then add leaf mustard and water, sauté.
3. When the leaf mustard softens slightly, season with chicken powder and Puning soybean paste, add a little oil. Sauté until the leaf mustard becomes tender and well-mixed with the soybean paste, serve.