Some people say that potato chips shouldn't make your mouth pucker to the size of a Lima bean, but those people have never experienced the tangy, tart, salty joy of a British chip, many of which come coated in sharp vinegar.
These Taylors pickled onion potato ‘crisps’ (as they're known in the UK) is a popular flavor across the pond, and once you get over the initial shock, you'll find their sour, sweet, oniony taste utterly addictive.