Blended raw carrots give this zippy dressing texture and color. Make extra, and keep it in the fridge for dipping raw vegetables.
1. To make Dressing: blend all ingredients in blender until smooth.
2. To make Salad: Toss together cabbage, radicchio, avocado, and onion in large bowl. Pour in Dressing, and toss gently until all salad ingredients are coated with Dressing. Sprinkle hemp seeds on top, if using, and serve.