Put all the ingredients for the dressing, apart from the olive oil, into a bowl with ⅛ teaspoon of salt and a good grind of black pepper. Whisk to combine, then, continuing to whisk as you pour, slowly add the oil until the mix is thick and emulsified.
5 Tip the cooled bulgur into a very large bowl and add the cabbage, parsley, mint, spring onions, orange, ¾ teaspoon of salt and a generous grind of black pepper.
6 Mix well to combine, add the cavolo nero, and pour over the dressing. Mix just to combine, then transfer to a serving platter or individual plates.
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