Doritos has launched a mystery flavour competition, challenging consumers to identify the latest limited-edition variant in the range. To enter, consumers have to buy a pack of the new flavour, log on to, enter their unique pack code and guess the flavour. All the correct entrants will be entered into a draw to win the top prize of £20,000. There are also spot prizes of laptops, Xboxes, mobile phones and O2 tickets up for grabs. The competition will run until September.

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