craqueter

Craqueter means to crackle repeatedly — dry leaves underfoot, a wood fire, or old floorboards craquettent with a series of small snapping sounds. It's the frequentative form of craquer, implying a repeated series of small cracks rather than one.

• Le feu craquetait doucement dans la cheminée. — The fire crackled softly in the fireplace.
• Les feuilles mortes craquetaient sous nos pas. — The dead leaves crackled under our footsteps.
• Le vieux parquet craquette à chaque pas. — The old floorboards creak with every step.

Craqueter is mostly literary/descriptive vocabulary for a repeated crackling sound — in ordinary conversation, most speakers would just say craquer (which also covers a single or repeated crack) rather than reach for this more precise, less common variant.