Cajun Squirrel, Chilli & Chocolate, Crispy Duck & Hoi Sin and Onion Bhaji are some of the more unusual crisp flavours to be shortlisted in the Walkers Do Us A Flavour competition, which was announced this week.

Six flavours in total have been shortlisted, with the more traditional Fish & Chips and Builders Breakfast the other two finalists. More than a million entries were received in response to the crisp-maker's campaign launched in July to find a new Walkers flavour.

"Choosing from the huge numbers of flavours was a really difficult job," said Ian Ellington, Walkers VP of marketing. "We had to make sure all the finalists were as delicious as all our other Walkers favourites and are really pleased with the chosen flavours. We are convinced the nation is just going to love them."

The six flavours will be sold in two different multipacks of six selling three of the new flavours each, rsp £1.55, and Big Eat-sized bags, rsp 50p until May. To make it easier for impulse retailers to stock all six flavours, Walkers is offering smaller cases of 24 packs instead of 32.

The winning flavour will be decided by public vote between now and the end of May and the most popular flavour will become a permanent line.

Consumers can vote on mobile phones with a free SMS message or online at a newly revamped Walkers website, The site has been redesigned to be more "engaging" said the company, with more interactive content, details about the finalists and their entries, games and activities.

A television campaign starring brand ambassador Gary Lineker will be launched on 4 February to promote the six flavours.

He will star in separate 20-second TV commercials for each of the flavours as well as a 60-second ad ­promoting the whole campaign.

A consumer PR campaign, PoS material and in-store activities will also form part of the promotional mix.

The Do Us A Flavour campaign is Walkers' single most expensive campaign in its 60-year history.