Start with the simple ones
Roast chicken, buttered leeks, pommes purée, a properly made vinaigrette: the recipes that best teach Keller's method are the ones with the fewest components, because every failure is visible and attributable.
The lesson in each is the same — salt earlier than feels comfortable, control temperature more tightly than the recipe seems to require, and do not crowd the pan. Nothing exotic is being asked of you.
- Roast chicken from Bouchon — the standard starting point
- Pommes purée — a lesson in ratio and patience
- Leeks braised in butter and stock
- Vinaigrette built as an emulsion, not a shake