Combine cabbage, garlic and water in a large saucepan and bring to a boil over high heat. Reduce heat to medium-low and cook, stirring once or twice, until tender, 4 to 5 minutes.Advertisement
Meanwhile, whisk vinegar, oil, ginger, salt, sugar and crushed red pepper in a large bowl.
Add the cabbage, scallions and carrot to the bowl and toss to combine. Refrigerate for about 25 minutes before serving.