Nigella Lawson's US travel ban has reportedly been lifted.

The celebrity chef, who was blocked from boarding a British Airways flight to Los Angeles at London's Heathrow Airport in March because of her previous confession to taking drugs, has secured a ''waiver of inadmissibility'' allowing her to enter the country to resume working on her ABC reality series, 'The Taste,' later this year.

A source told The Sunday People newspaper: ''It has been a torrid year for Nigella but now things are starting to come together. She is very happy about this. She can now continue her role on 'The Taste,' something she enjoys immensely.''

The US can prevent anyone who has committed drug offences from travelling to the country even if they have not been charged, but following the incident authorities invited the brunette beauty to apply for new visa and assured her the matter could be handled ''routinely and expeditiously.''

Nigella admitted she had taken cocaine seven times on two occasions during a trial against her former personal assistants last November.

She said at the time: ''I've never been a drug addict, I've never been a habitual user. There are two occasions in my life when I used cocaine.''