Never stir a brodet with a spoon; shake the pan by the handle, or the fish comes apart and you have soup. Onions first and slowly, twenty minutes until they are sweet, and the fish goes in last for barely twelve.
It did not make it into the plan for these seven days.
The method above is what decides the dish, not a step-by-step recipe. The link runs a web search on the name: this page has no vetted sources of its own, and will not invent any.