Edinburgh is officially the most expensive place in Scotland to buy a bag of chips.A survey of Britain’s late night eating and drinking habits also found that a portion of fries in the capital was the second most expensive in Britain, costing an average of £2.16.That was 43p dearer per bag than London and 37p more than Glasgow.Chips in the University town of Cambridge were the dearest in Britain at £2.19 a bag.The steel city of Sheffield was the cheapest at £1.26 per poke.The survey by online pharmcist treated.com also found the citizens of Edinburgh paid the most in Britain for a kebab – an average of £7.50.The cheapest in Britain was Liverpool at £4.26, with a kebab costing Glaswegians an average of £5.46.However, the capital was good