Pommes de Terre Soufflées

Pommes de terre soufflées (hollow puffed potatoes) teach the cleanest lesson in frying: the rise comes from controlled contrast, not luck. One true thing before you touch a pan: moisture belongs inside the potato, while the surface must be absolutely dry. The moderate bath cooks each slice into a flexible envelope; the fresh hotter bath expands what is trapped within and lifts the two faces apart.

The source entry assumed a brigade station with two deep vats of fat, a frying basket, stretched linen, and enough hands to fry and serve at once. Your honest equivalent is two small heavy saucepans on adjacent burners, two thermometers, a spider, and a wire rack. Three potatoes feed four people generously. The basket and linen are brigade scaffolding, so they go; the exact cut, separate baths, rising temperature, and immediate transfer are the dish, so they stay. One cook, one stove, one evening.

The first slice is your scout, not a sacrifice. Watch it rise in the moderate bath, then test it in the hotter one before committing the rest; if it lies flat, the method tells you what to correct. Before that first slice meets the fat, dry every one twice. That dry surface is the step that decides the dish.