North Londoner Yan, immigrated to the UK from Hong Kong over forty years ago. With a background in science, she worked for the NHS and Public Health England as a Senior Biomedical Scientist for over 20 years. Now a Research scientist for Cancer Research UK, Yan spends most of her time in a tiny laboratory hidden away in the London based Crick institute.

A baker in series 8 of the Great British Bake Off, she is probably best remembered for her science based bakes, phallic puddings and saying the word ‘Bum’ on national television.