She said: "When I am on TV I cook the food that I cook at home but my children always tease me."
Explaining further about her style on TV, she insisted that it was "not an act" but simply a reaction to being "nervous and "a bit awkward".
She added that she was "an incredibly shy child" and that childishness in turn led her to act "quite camp" rather than being "coquettish".
She also revealed that it was Cosima who helped her find happiness again following the infamous Charles Saatchi ordeal.
The TV chef, 59, was snapped looking distressed as her then husband, 76, grabbed her by the throat in 2013. Photos from the incident shocked the world.
The dramatic bust-up at a swanky Mayfair restaurant saw the couple's 10-year marriage crumble just weeks later.
Nigella has since told how her confidence took a huge knock in the wake of the events.
The star developed a fear of being photographed in public, but with the help of her daughter Cosima Diamond, 25, she's learning to overcome her demons and be happy again.
She revealed to the Sunday Mirror: "I have been forced to be guarded. I used to be more open and I'd like to think I will be again."