Bartons Sweet Onions in Vinegar is a tasty pickle preserving method which incorporates vinegar and salt. Enjoy it with traditional English Fish and Chips or as part of a Pub ploughman’s lunch. Known as 'silverskin' onions, these small white pickled onions are often used as an essential item of a salad or can be served on sticks, referred to as a 'Party Onion'. Alternatively, it is also available in unsweetened vinegar.