During an interview with BuzzFeed earlier, David Cameron admitted that he had two kitchens, just like Labour leader Ed Miliband. The prime minister told the website he had a second kitchen installed in his house in Notting Hill for the benefit of the carers who looked after his disabled son Ivan, who died in 2009.

Mr Cameron said: "We actually had to extend into the basement and we put in an extra kitchen, not least because I had a very disabled son, Ivan, and his carers were there and they looked after him and so we did that for them, as well as for him."

He added: "The point is not whether you have got two kitchens, but whether you have a photocall in one of them and pretend it's your kitchen. That's the issue."