250g/8oz carrots, peeled, diced
1 celery stalk, diced
85g/3oz kale, chopped (optional)
1 leek, white part only, sliced
2 onions, diced
250g/8oz turnips, diced
salt and freshly ground black pepper
75-125g/3-4oz pearl barley
2.3litres/4 pints lamb or mutton stock