Harriott's talents lie in comedy and singing as well as cooking. Harriott attended Wandsworth Comprehensive School then trained at Westminster Kingsway College (formerly Westminster Technical College), and obtained an apprenticeship at Verrey's restaurant in London's West End, later working as a commis chef. Harriott was born in Paddington, London, to Peppy ( née Strudwick) and pianist and singer, Chester Leroy Harriott (1933–2013).