Buckwheat added raw to the pot goes to mush and clouds everything; cook it separately and spoon it into the bowl. Thigh rather than breast — an hour of broth turns breast to string.
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.