30/12/2013 11:34 GMT | Updated 25/01/2014 16:01 GMT

David Cameron: 'I'd Check My Wallet' After A Pint With Alex Salmond

British Prime Minister David Cameron, front, and Scottish First Minister Alex Salmond watch Andy Murray of Britain face Novak Djokovic of Serbia during the Men's singles final match at the All England Lawn Tennis Championships in Wimbledon, London, Sunday, July 7, 2013. (AP Photo/Kirsty Wigglesworth)

David Cameron has joked that he'd have to check his wallet if he was ever forced to join Alex Salmond for a pint.

Asked by The Spectator who he would rather have a drink with out of Nick Clegg, Alex Salmond or Ed Miliband, the prime minister said he would choose the the Lib Dem deputy prime minister. "I’d go for a drink with Nick Clegg, we have a decent working relationship," he said.

Cameron added: "Alex Salmond: I’d have to check my wallet afterwards!"

The extract had not initially been published by the magazine when it ran the full interview earlier this month, but it decided to post the exchange on its website on Sunday.

Cameron also defended Alistair Darling's handing of the Better Together Scottish anti-independence campaign. He said the former Labour chancellor was "doing very well".

Darling has bee the subject to some whispers in recent weeks about his ability to take the fight to Salmond. However senior figures in the pro-union campaign in Westminster have been quick to stick up for him. Former Lib Dem Scotland secretary Michael Moore told The Huffington Post UK that the briefings were the work of "one or two out of touch people inside the Downing Street machine".