Francesca added: “Caterers sometimes came in to do the cooking, then in the last few years the family ate out. From 2009 they went to her husband’s gallery on Christmas Day. They’d rent the entire restaurant and have people cooking and serving the food.”
The sisters also told how stress levels soared in the couple’s luxury home throughout December. Elisabetta, 41, who was the couple’s aide from 2001 to 2012, said: “Something would always go wrong and the tension would rise.
“Nigella was very busy so all the tasks would be passed to us and the other staff. It was a very stressful time.”