Nigella Lawson has broken her silence for the first time since pictures of her husband, Charles Saatchi, grabbing her neck were made public on June 15.
The celebrity chef took over Twitter and posted a picture of a chocolate cake for her son's 17th birthday with the words ''Happy Birthday Bruno'' on Friday night, News.com.au reported.
The tweet has been liked by more than 450 fans and re-tweeted more than 110 times.
