During testimony in the trial of two sisters accused of stealing from a celebrity chef and her former husband, the chef, Nigella Lawson, admitted using cocaine, the Associated Press reports.

But Lawson, 53, said she wasn’t a regular user, according to the report.

Lawson accused her ex-husband, Charles Saatchi, of trying to “destroy” her by spreading false allegations about her supposed drug use, the story says.

“He told everyone that he was taking cocaine out of my nose at Scott’s when he knows that is a lie," Lawson said during her appearance as a prosecution witness in the trial. She said Saatchi spread “false allegations that I was a habitual user" who used cocaine on a daily basis.

"People who do that are a lot thinner than I am," she said. "I have never been a drug addict."

As previously reported, Lawson’s future on ABC’s “The Taste” was reportedly in question over allegations of drug use that emerged from the trial. The former aides, Francesca and Elisabetta Grillo, claim that Lawson let them spend money as a way to keep them quiet about her drug use, a charge that Lawson disputed.

Nigella Lawson