By Lizzie Edmonds PUBLISHED: 07:01 EST, 24 December 2013 | UPDATED: 19:26 EST, 24 December 2013 Festive: Nigella Lawson, pictured on one of her Christmas-themed television shows, did not prepare mince pies or Yule logs and 'only made a Christmas pudding once', the Grillo sisters claim Nigella Lawson relied on caterers, hired a team to decorate her Christmas tree and never cooked festive foods such as mince pies, her former assistants have claimed. Francesca and sister Elisabetta Grillo have said festivities in the chef's household were a far cry from the celebrations she portrays on screen.
@highlight
Chef 'never made mince pies or Yule log' and 'made Christmas pudding once'
@highlight
Hired in caterers and ate Christmas dinner at Saatchi gallery, it is claimed
@highlight
Nigella 'would wear tracksuits and an old granny dressing gown'
@highlight
Grillo sisters said TV chef was 'just a brand' and real life was very different
@highlight
Nigella professed she is a 'terribly lazy person' in interview last week
@highlight
Last week sisters were cleared of credit card fraud at Isleworth Crown Court
@highlight
Yesterday, they described Charles Saatchi's bizarre demands and habits
@highlight
Nigella's brother Dominic Lawson slammed suggestions his sister had a 'bad character' and said he was 'full of admiration' for her
A spokesman for @placeholder said they were not commenting on the claims.