Apple Jelly

Gelée de pommes (apple jelly) teaches the first law of clear preserves: pectin must be drawn from the fruit without dragging the fruit itself into the juice. Before you touch a pan, know this one thing: never press the apples. Their skins and cores give the set; pressure gives cloudiness.

The old formula assumed a broad copper preserving pan, loaf sugar, muslin always ready, and a pantry batch large enough to occupy several hands. The loaf sugar and brigade-sized equipment were scaffolding, so they can go. A wide stainless-steel pan, ordinary white granulated sugar kept at the exact ratio, and a damp square of muslin give one cook the same result. The batch has been scaled to about eight small jars, but the sequence has not changed: cook lightly, drain by gravity, pour the juice away from its deposit, boil it with sugar and vanilla, then strain it once more.

The finished gelée should be lucid amber, softly fragrant with vanilla, and tender enough to tremble on a spoon rather than bounce. One cook, one stove, one evening. The step that matters most is the quiet, unpressed drain, because clarity lost there cannot be boiled back into the jelly.