Fish and chips are a national institution in UK. Now chippies across the country are preparing to celebrate the 150th birthday of our most famous fast food. For generations, fish and chips have fed millions of memories - eaten with greasy fingers on a seaside holiday, a pay-day treat at the end of the working week or a late-night supper on the way home from the pub. Few can resist the mouth-watering combination - moist white fish in crisp golden batter, served with a generous portion of hot, fluffy chips. Everyone has their own preferences and tastes vary from one part of the country to another. Cod or haddock? Salt and vinegar? Pickled onion? Scraps? © BBC