<human>:  What is the best way to chop an onion quickly and safely?
<bot>: The best way to chop an onion quickly and safely is to first cut the onion in half, then lay one half flat and make several cuts lengthwise. Next, take one half and make several cuts crosswise to create small pieces. Finally, hold the peeled onion firmly and make short, sharp, downward cuts to finish the chopping.