Raymond Blanc rows with Great British Bake Off's Ruby Tandoh on Twitter

Michelin-starred chef irked by the show's most emotional contestant

Raymond Blanc has attacked Great British Bake Off contestant Ruby Tandoh (PA/Getty Images)

Respected chef Raymond Blanc has claimed that Great British Bake Off finalist Ruby Tandoh is too thin to appreciate good food.

In a remarkable Tweet, Blanc, whose Manoir aux Quat'Saisons restaurant in Oxfordshire holds two Michelin stars, attacked the 21-year-old amateur baker's personality and cooking.

The 63-year-old also appeared to reveal the winner, though it later became clear he did not know who had won the show.

"The Great British Bake Off. Not much skills, female tears and a winner so thin who makes me doubt of her love for great cooking, baking," he wrote.

Tandoh fired back, saying: "'female tears'?! And what has anyone's size got to do with it? I don’t care if you're a patisserie king – don't be an idiot."

Bake Off judge Paul Hollywood, who recently denied showing favouritism towards the young contestant, stood up for Tandoh, saying: "Wow Raymond have you seen the winner already???"

Blanc later apologised, saying: "It seems my tweet was not written how it was meant to. Frenchman writing English! I'm sorry I do not know who the winner is," adding: "Sorry guys, I was a grumpy Frenchman this morning."

Tandoh, who has won the "Star Baker" accolade three times this series, will compete against Frances Quinn and Kimberley Wilson in tomorrow night's final.