Culture of the United Kingdom fried rice, chips and curry sauce). The earliest recipe for the crisp ("potato chip" in North America) is in English food writer William Kitchiner's 1822 cookbook "The Cook's Oracle". In 1920, Frank Smith of The Smiths Potato Crisps Company Ltd packaged a twist of salt with his crisps in greaseproof paper bags, which were sold around London. In the 1950s, Irish crisps company Tayto developed a technology to add seasoning during manufacture, producing the first seasoned crisps: Cheese & Onion and Salt & Vinegar. The crisp market in the UK is dominated by Walkers, which holds 56 per cent of
Real Crisps for independent retailers and pubs. After a financial investment in 1999, the company changed its name to become Sirhowy Valley Foods, while maintaining Real Crisps as the brand name of the lead product. In August 2005, Real Crisps moved into a new factory in Crumlin, Caerphilly. The new factory, measuring , increased the production capacity by 50 percent. This enabled the 90 staff to produce 37,000 cases of crisps per week. The move was due to demand outstripping the ability to supply at the previous location in Cwmfelinfach. At this point, Real Crisps were the second biggest company behind Kettle