800g-1kg/1lb 12oz-2lb 4oz butternut squash, peeled, seeds removed, diced
2 garlic cloves, finely chopped
1 onion, finely chopped
2 sprigs sage, leaves picked and finely sliced
salt and black pepper
250g/9oz pearl barley, rinsed
1 litre/1戮 pint vegetable stock (made from a stock cube)
75驳/2陆辞锄 butter