Soak 2 small bundles of dried glass noodles in cold water for 5 minutes until slightly softened. Drain and cut the glass noodles in half lengthwise. Set aside.
Julienne the cabbage thinly. Prepare the stir fry sauce by mixing together 1 tablespoon light soy sauce, ½ teaspoon dark soy sauce, ½ teaspoon black vinegar, ½ teaspoon ground white pepper, 1 teaspoon sesame oil, ¼ teaspoon sugar, and ½ cup water.
Heat 3 tablespoons of oil in a wok over medium heat. Cook the ginger and garlic until the garlic has browned lightly. Add the cabbage, and turn the heat to the highest setting. Stir fry for 1-2 minutes until the cabbage is slightly wilted. Add the dried chilies (if using).
Add the prepared sauce and the glass noodles. Stir and mix everything well, turning down the heat a bit if the dish is becoming too dry and risks getting burned. Salt to taste and add the scallions. Stir to combine once more, and serve!