First mix the rice vinegar with the honey and peanut butter in a heat-proofed jam jar with lid.
Warm the mixture in the microwave for 10 to 20 seconds (without the lid), it helps to combine the ingredients thoroughly.
Add the soy sauce, ginger, sesame and canola oil and close the jar.
Shake the dressing until everything is mixed well. Set the dressing aside.
In a bowl, mix the the cabbage, carrot, pepper, spring onions, mango, chicken, nuts and mint or cilantro if you use them.
Pour half of the dressing over the salad and toss well.
Let the salad sit in the fridge for at least 30 minutes.
Check if you would like to use more dressing.
Check the seasoning, maybe you would like to add some salt and pepper (I do).
Sprinkle with nigella seeds before serving.
The salad lasts until the next day in the fridge.