1kg/2lb 4oz Jerusalem artichokes
1 large Jerusalem artichoke, prepared and finely diced
1 celery stick, finely diced
handful celery leaves, soaked in iced water
2 garlic cloves, chopped
2 sprigs lemon thyme
lemon pur茅e, optional
squeeze lemon juice
3 shallots, chopped
500ml/18fl oz chicken stock
2 preserved lemons (peel only), finely diced
flaked sea salt and freshly ground black pepper
olive oil, for cooking
drizzle olive oil
200ml/7fl oz fish stock
50g/1戮oz unsalted butter
100ml/3陆fl oz double cream
4 large, raw scallops with roe
200ml/7fl oz dry white wine