Add all the vegetables into a medium saucepan and cover with water, I leave the skins on for more flavour. For a clearer stock, please peel the vegetables.
Simmer for two hours over a medium heat.
Once cooked, mash the vegetables in the pan, this will add lots more flavour.
Pass the stock and vegetables through a sieve and put down all the goodness with a potato masher, making sure you scrape the base of the sieve and add the pulp to the stock. Discard the vegetable pulp, check and adjust the stock for seasoning. Make pastina.