When Nadiya Hussain won The Great British Bake Off in 2015, she delivered an emotionally charged speech. “I am never, ever going to put boundaries on myself, ever again,” she declared. “I’m never going to say: ‘I don’t think I can’. I can and I will.”

Before filming GBBO, the anxious mum-of-three had never so much as taken a train by herself. Within months, she was a full national treasure – and has since travelled the world with her broadcasting career.