You can actually slice up a potato and whack it in the microwave to make your own crisps! Some tips from the pros:

 

• soak and rinse in cold water to remove the starch. Two verses of Crazy in Love and the dramatic bridge section should do it.

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• get your slices as thin as you can.

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• they take about 6 minutes in two 3 minute batches, conveniently the same time it takes to watch Alison Hammond pushing a sailor into the Mersey (twice) (trust us).