She had committed an imprudence in leaving Sarah in charge of the preserving-pan, for her want of sympathy in the nature of its contents had induced a degree of carelessness in watching their confection, whereof the result was--dark and cindery ruin. 
She had imprudently left Sarah in charge of the preserving-pan; and the maid's lack of sympathy for its contents had induced a degree of carelessness, whose result was dark and cindery ruin. 