The mother of two appeared on Good Morning America to promote her new television show, but was also asked about the court case, which saw her face allegations of drug-taking.
Asked what it was like to be a witness in the trial of Elisabetta and Francesca Grillo, who were acquitted, Lawson said: “I can’t really remember exactly because you’re so focused on answering the questions to the best of your ability that actually you don’t really have an enormous awareness of yourself.
“Maybe that’s a good thing. My only desire really was to protect my children as much as possible which... alas I couldn’t always do.”
Lawson added that having details of her acrimonious split from millionaire art dealer Saatchi talked about in court under the glare of the world’s media was “mortifying”.
“To have not only your private life but distortions of your private life put on display is mortifying, but there are people going through an awful lot worse and to dwell on any of it would be self-pity and I don’t like to do that,” she said.
Lawson said she was looking towards the future. “Actually, since then, I’ve eaten a lot of chocolate, had a very good Christmas, and am into the new year,” she said.
Lawson also commented on the fact that, as a witness, she was not able to have a lawyer defend her in court, unlike the defendants. “It’s one of the niceties of the English legal system that you’re not allowed any counsel if you’re a witness but maybe that will change,” she said.
Lawson admitted during the trial that she took cocaine with her late husband John Diamond when he found out he had terminal cancer, and in 2010 when she claimed she was being “subjected to intimate terrorism” by Saatchi.
Police are to review her admission that she took the class-A drug.
The self-styled domestic goddess was appearing on the breakfast show to talk about The Taste, which is being broadcast in the UK on Channel 4 and has been described as MasterChef meets The Voice.
Wearing a black, figure-hugging dress, Lawson spoke confidently about the court case at Isleworth Crown Court in west London, which concluded last month.
During the trial, Lawson accused Saatchi, whom she divorced last summer, of threatening to “destroy” her.
She said that, despite doing her civic duty, she was “maliciously vilified without the right to respond”.
The Grillos were accused of fraudulently using company credit cards, spending hundreds of thousands of pounds on designer goods for themselves while working as personal assistants to the celebrity couple.
However, the Italian sisters claimed that every purchase had been approved by their then-bosses and were found not guilty after jurors deliberated for nine hours.