ed (skin still on)**  **0cm knob of fresh root ginger, smashed (skin still on)**  **0 spring onions (with roots)**  **0 tsp salt**  **0 tbsp sugar**  **0 tsp cracked black peppercorns**  Combine all the ingredients in a stockpot and add 0 litres water. Bring to the boil over a medium-high heat, then reduce the heat to medium-low. Partially cover the pan and simmer for 0 hours. Skim off any foam or scum that may rise to the top using a slotted spoon.  When the time is up, allow the stock to cool, then strain 