Powdered Sumac is a rich red spice from the Mediterranean that has a tart flavour, a bit like the fleshy sour yellow flower stems (suurings) you find in lush grass. Another of our favourite slaws, this one is cool, crisp and tart: a fantastic accompaniment to most Mediterranean dishes and great stuffed in a pita with our falafel, hummus and tzatziki.
1½white cabbage, very finely sliced
3red onions, halved and very finely sliced
2cups of roughly chopped Italian parsley
juice of 3lemons
salt and black pepper
Mix all the ingredients together in a large mixing bowl with two wooden spoons.