Krispy Kreme UK has launched its second advertising campaign, encouraging workers to buy a dozen doughnuts for fellow colleagues.

Working with global media agency Addiction, the international doughnut business’ ’Think inside the box’ campaign will span print, outdoor and social media. Headlines such as ’May the workforce be with you’, ’Want to leave at 3? Start at 12’ and ’12 steps to a promotion’ will appear in key commuter locations, including London Underground stations and phone boxes throughout Manchester city centre.

Judith Denby, chief marketing officer at Krispy Kreme UK, said: “We’re delighted with the success of Addiction’s campaigns to date, as they have enabled us to extend the brand communications regionally, as well as across different channels, resulting in a healthy uplift in sales and brand saliency with customers.”

A competition will also run across Krispy Kreme’s Facebook and Twitter platforms, supporting the outdoor advertising campaign. It will encourage individuals to post and tweet their favourite work disasters or triumphs for a chance to win a box of a dozen doughnuts.