Put the chicken stock in a good-sized pan to heat up.
Put the noodles in a bowl and pour boiling water over or cook as instructed on the packet.
Add the remaining ingredients, except the vegetables, to the pan and bring to a boil.
When the chicken is piping hot, add the vegetables and when they are tender - a minute or two should be plenty if you're using the tender shoots - add the drained noodles. Or simply divide the noodles between bowls and pour the soup over them.
Serve sprinkled with chopped fresh coriander.
Recipe from Nigella: Kitchen by Nigella Lawson (published by Chatto & Windus).