Jamie Oliver signs copies of his new book, 'Jamie's Ministry of Food' at Waterstones, Piccadilly, London, UK.

Jamie Oliver signs copies of his new book, 'Jamie's Ministry of Food' at Waterstones, Piccadilly, London, UK.

Chef Jamie Oliver has sparked a new feud with Gordon Ramsay after saying he prefers his wife's cookbooks.

The 34-year-old star has previously been called a 'one-pot wonder' by Ramsay, 43, and said the last time he complained about food at a restaurant was at one of Oliver's establishments.

However, Oliver has now said: "Men big everything up non-stop, but women tell you the truth. If I was to choose between Gordon Ramsay's cookbook or Tana Ramsay's, it would be Tana's every time.

"In my opinion, her books are a damn sight better than his."

However, a source close to the star has reportedly said he is not looking to start a new feud with his fellow chef.

A source said to UK newspaper Daily Mirror: "He genuinely prefers Tana's books."