British chef talks extreme weight loss and the best meal he’s ever had – at a Singapore street stall

Tell us about your childhood. “The one thing I never lacked was love and understanding – my Mum is amazing. We never felt deprived of anything even though we were clearly not staying in five-star hotels. But it’s not like my mates were doing that: we were all in the same situation, living on the same estate in Gloucester. “It was just myself, my younger brother and Mum, who had two jobs. When she had to work in the evenings, I cooked for my brother. It wasn’t like...