Place the shredded cabbage, grated carrots and chopped parsley in an extra-large mixing bowl.
Place the ingredients for the vinaigrette in a small container or glass measuring cup and whisk briefly with a fork to combine, then pour over the vegetables and mix well, preferably with your hands, until well blended.
Now place your slaw in the fridge to chill and allow flavors to develop and mingle for AT LEAST 4 hours, but preferably overnight.
This slaw will also keep (and age well) for up to a week in an airtight container.