Smoked Haddock Chowder

INGREDIENTS
1 leek
2 large potatoes
2 naturally smoked haddock fillets, skin removed
fish stock (1litre)
1 bay leaf
skimmed milk (100ml)
small tin of sweetcorn (198g tin)
1 lemon
2 fresh plum tomatoes
1 small French baguette
a handful of fresh parsley