For decades, prawn cocktail, salt and vinegar and cheese and onion were staple flavours of the British lunchbox. But it appears that the potato crisp is in decline. A snack industry survey shows that alternative, non-fried savoury snacks including tortilla chips, and biscuits such as Mini Cheddars, are now selling outselling crisps in Britain. The UK crisp market is worth £923.2 million, down 2 per cent in the past year, according to the Grocer magazine. Report