Grate coarsely, never finely — fine grating releases water and you get a wet heap in ten minutes. Lemon first and immediately, before the apple has a chance to brown.
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.