Divide the mixture into 5 portions of 250 g each. Freeze the ones not needed. Add the
fish balls and pok choi stems to the remaining broth portions, bring to the boil, turn
off and leave to stand for at least 10 minutes.
Shortly before serving, add the remaining ingredients, including the pok choi leaves,
and bring to the boil. Heat the noodles in a microwave oven (30 s for a 1200 W oven).
Pour the soup over the noodles. Serve.
Discussion
The paste originally wanted to have a volume of 900 cm³ when mixed. I found that too
little, so I increased to 1250 cm³. Currently I think that that could make 5 portions.