The incident happened at around 12.50pm on Wednesday 31 July at the Spar on Turner Close.
The suspect (pictured) is described as about 5 feet 6 high, with shoulder length hair tied in a bun, wearing black trousers, grey long sleeved mickey mouse top and white trainers.
Please email paul.harwood@northyorkshire.police.uk if you have any information that could help the police investigation. Alternatively, you can call North Yorkshire Police on 101, select option 2 and ask for PC Paul Harwood, or contact Crimestoppers anonymously on 0800 555 111 or via their website.
Please quote NYP reference 12240137630 when passing on information.
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