1.5kg/3lb fish bones, including heads
1 large carrot, chopped
2 celery stick, including the leafy top, sliced
3-4 fresh parsley stalks, roughly torn
Chives, small bunch
Place the fish bones in the water and bring to the boil. Simmer for 20 minutes, then pass through a strainer lined with muslin.
Return the stock to the pan and add the vegetables. Bring to the boil and simmer again for 45 minutes.
Toward the end, add the herbs and allow to infuse for five minutes.
Strain again, then use or store. You can store stock in a covered container in the fridge for up to four days.
You can keep it indefinitely if you re-boil it every four days or so. Otherwise, store it in small quantities in the freezer.
Recipe adapted from: Good Food