1 Bramley apple, peeled, core removed, flesh chopped
1.5kg/3lb 5oz butternut squash, seeds removed, flesh cut into large wedges
1 garlic clove, finely chopped
1 onion, chopped
1 sprig fresh thyme
salt and freshly ground black pepper
500g/1lb 2oz chestnuts, roasted and peeled, plus extra, sliced, to serve
400g/14oz ready-made chestnut 辫耻谤茅别
5 tbsp olive oil
truffle oil, for drizzling
2 litres/3陆 pints hot chicken or vegetable stock
double cream, for drizzling (optional)