Prick the skin all over and start it skin-down in a cold dry pan; a duck that renders properly loses a teacup of fat, and a duck that does not is greasy rather than rich. Sour apples, halved, added only for the last forty minutes, or they collapse into sauce.
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.