These particular packets of crisps will only be available in Morrisons supermarkets and cost £1 per 125g sharing bag. Hoping to capture a taste of the North, the flavours are inspired by the ...

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A cheaper supermarket option impressed in our blind taste test of sweet chilli crisps, and one brand stood out above the rest ...

which is also more than a bag of crisps. Even the least-offending products in terms of high salt levels, such as Morrisons Savers Mild Coloured Cheddar, contains 1.44g of salt per 100g.

Checks by the newspaper found that Walkers crisps multipacks were already listed as out of stock or unavailable on the websites of supermarkets including Tesco, Ocado, Asda and Morrisons.