Apple's Cookie Monster ad is one of the company's most loved in years (I mean who doesn't love a Muppet?) and now Apple has posted some behind the scenes footage on it's YouTube Channel.

Apple has posted a new ad on it's YouTube starring Cookie Monster to promote the "Hey Siri" hands free feature on the iPhone 6s.

It sees Cookie Monster baking cookies and passing the time as he waits for Siri's timer to countdown until they are done - cute!