He describes himself as a devoted husband and relocated his family to France so he could "spend more time with them". But celebrity chef John Burton Race has left his wife Kim feeling betrayed after leaving her and their six children for another woman - who secretly had his child.
The source added: "John has admitted to Kim that he has a child with this other woman."
Susan Ward is believed now to sell greetings cards. Burton Race has been away filming his latest TV series but Kim, 42, his second wife, confirmed that he had walked out on the family.
She said: "The children and I are feeling betrayed and very fragile at what we have discovered."
On his website, Burton Race modestly describes himself as "a television natural, discerning author, shrewd businessman, eloquent orator, devoted husband, father of six, dog walker of two". He adds that he is "a culinary genius and a big softie at heart".
The three-time Michelin starred chef has moved in with mistress Susan Ward.
According to a source close to the family, he has been seeing her for more than three years "so maybe he moved his family to Devon just so he could be near her".
Burton Race was featured in the Channel 4 series French Leave and Return of the Chef.
He uprooted his wife and children to France and then Devon in his "quest for fine ingredients", saying he hoped to "rediscover his family, his love of cooking and his creativity".
The resulting pressures and arguments were lovingly recorded by a camera crew. Burton Race described himself to one interviewer as a "loud-mouthed, disagreeable, arrogant git".
He added: "I've had a wife who's in the business, and that has its problems, and I've had a wife who isn't in the business, and that has its problems.
"I'm not saying chefs are better off alone. They need someone to care for them, too.
"But if you're attracted to the madness of a chef, the excitement of him, why spend all your life trying to mould him into being someone else? Get another bloke."
His current restaurant, the New Angel, opened in May 2004. It won a Michelin star within three months and both he and his wife have worked hard to make it a success. They have two children, Charles, nine, and Amelia, eight, while Kim has four children from her previous marriage, Eve, 20, Amelia, 18, Martha, 17, and Eliza, 11.
The couple met 11 years ago on a Caribbean island at a mutual friend's birthday party.
Both were married at the time, and Burton Race went through a bitter divorce from his French first wife, with whom he has two more children.
Like many chefs, Burton Race has a fiery temper.
Two years ago, armed police swooped on his home after a 999 call reporting that he had threatened to shoot stepdaughter Eve's boyfriend.