* 1 kg (2lb ish) of fish bones, heads, trimmings from non-oily fish - a good indipendant fishmonger will have these ingredients
* 1 Onion, peeled and chopped
* 2 Carrots, peeled and chopped
* 1 Leek, well washed and chopped
* 1 stick of Celery, with leaves if possible, chopped
* 4 sprigs of Parsley, with stalks
* 2 sprigs Thyme
* 2 sprigs Dill or Fennel
* 1 Bay leaf
* pinch of Salt
* ¼ of a Fennel bulb (optional)
* 2.5 Litres (4 ¾ Pints) of cold water

===Method===
* Rinse the Fish pieces under cold running water and drain
* Add all of the ingredients to your largest pan, cover with the water, cover and bring to the Boil
* Reduce the heat and Simmer for 30 minutes with the lid slightly ajar, skimming off any scum that forms
* Remove from the heat and allow to cool slightly
* Strain well, not disturbing the ingredients or you will have a cloudy Stock
* Allow to cool then refrigerate or freeze

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