3 spring onions, chopped
1 tbsp curry paste, mixed with 1 tbsp water to form a smooth paste
50驳/1戮辞锄 plain flour
salt and freshly ground black pepper
1 tbsp flaked almonds
200ml/7fl oz hot fish stock
15驳/陆辞锄 butter
75ml/2戮fl oz double cream
1 free-range egg, beaten, plus 1 free-range egg yolk
350g/12oz puff pastry
18 king prawns, cooked, peeled