Soak the red cabbage in cold water for 5-10 minutes and drain. In a large bowl, toss all of the ingredients together. Mix with the dressing and serve immediately or drizzle the dressing over the top when ready to serve. Garnish the slaw with extra peanuts and cilantro.
Peanut dressing
Grind the peanuts, ginger, garlic, and lemongrass in a food processor until smooth. Blend in all remaining ingredients and refrigerate until ready to serve.