Crispness

A dry, brittle texture that snaps or shatters when bitten, prized in cookies, pastry, meringues and crusts.

Crispness: A flaky piece of puff pastry snapping in half and shedding crisp shards
  • Food science and baking chemistry

Crispness comes from removing moisture. Thin doughs, longer baking at moderate heat, white sugar and plenty of butter or shortening all help cookies and crusts dry out and turn crisp. In laminated pastry, steam from the butter puffs thin layers that then bake dry.

Crisp foods soften when they absorb moisture from the air or from soft fillings. Storing them airtight, filling pastries just before serving, and briefly rewarming in a low oven all help keep or restore the crunch.

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