Crispy fried onion slices in bowl with a spoon on a kitchen towel - Bhofack2/Getty Images Onions are an undeniable kitchen staple, which is why picking the best onions at the grocery store is crucial.

Chopping onions on a wooden cutting board - Mjrodafotografia/Getty Images We've all been there: you're chopping onions for your latest recipe (did somebody say French onion soup!?) and your eyes start ...