Celebrity cook Nigella Lawson told a London court that she has taken cocaine several times.<br/> <br />One occasion, she claims, was after being subjected to what she called "intimate terrorism" by her millionaire ex-husband Charles Saatchi.<br/> <br />Lawson also told the court she had smoked cannabis occasionally in the final year of her marriage.<br/> <br />The 53-year-old was testifying at the trial of two of her personal assistants who are facing fraud charges.<br/> <br />They're accused of misusing hundreds of thousands of pounds on a credit card belonging to Saatchi's company.<br/> <br />Sisters Elisabetta and Francesca Grillo, who worked for Lawson for more than a decade, deny the fraud accusations and their lawyers claim there was a "tacit understanding" that they could spend what they liked as long as they didn't tell anyone about Lawson's alleged drug use.<br/> <br />But Lawson maintains she has "never been a drug addict or abuser".<br/> <br />The court heard the assistants spent some of the money on lavish p
