1/2 lb (225 g) onions, finely sliced
4 sticks celery, sliced
1 small red or green pepper, de-seeded and sliced
6 oz (170 g) potatoes, sliced
1 lb (455 g) sweetcorn kernels
1 tablespoon oil
Pinch of sea salt
Pinch of dill seed, fennel seed, marjoram, savory, sage and/or thyme
1/2 pint (280 ml) fish stock (made from the simmered bones and skin of the fish)
1 1/2 pints (855 ml) water or kombu stock
1 1/2 lb (680 g) white fish - cod, haddock or whiting
4 oz (110 g) shrimps
1 tablespoon arrowroot or kuzu (optional)