Step by step

Cook the mussels in a casserole with some oil until they open, setting aside their cooking liquid afterwards

Tips
To get a fish soup absolutely full of different flavours, you could buy yet more varieties of fish, like flatfish, maybe already cleaned and gutted.
Trivia
Fish soup comes directly from the world of fishermen, who were used to using the less expensive and prized fish in making dishes such as this.

Featured

pasta rice