One of the UK's best known crisps producers, Golden Wonder, is being spilt up and sold to arch-rival snack firm Walkers and Longolf, owner of the Skelmersdale-based food producer The Snack Factory.  The deal will see Longolf control brands such as Nik Naks, Wheat Crunchies and the flagship Golden Wonder crisps, as well as the company's supermarket contract business. Meanwhile Walkers will take on the cheesy Wotsits brand in a separate deal.