Purpose
Arrange thin potato slices so cream and seasoning reach the gratin evenly.
Controls
Gratin Dauphinois uses 2–3 mm waxy-potato slices, the approved salt-pepper-garlic mixture between layers, and cream poured until just covered.
Process
- Butter the shallow dish.
- Arrange the potato slices tightly in even layers, distributing the seasoning mixture between them.
- Pour cream until just covered and tap to release trapped air.
Failure Modes
| Symptom | Likely cause | Corrective action |
|---|---|---|
| Unevenly seasoned or raw centre | Layers were uneven or seasoning was concentrated at one point | Keep slice thickness and seasoning distribution consistent. |