1. past tense and past participle of crisp; made crisp or crispier
Usage: transitive or intransitive; common in cooking and food preparation

Examples

• The baker crispened the cookies in the oven for an extra two minutes.
• The lettuce crispened after being soaked in ice water.
• She crispened the bacon until it was perfectly golden brown.
• The cold air crispened the fallen leaves.
• The fabric crispened after being starched and pressed.
• He crispened the edges of the pastry with a hot iron.
• The morning frost crispened the grass in the yard.