“Australia is on a different scale,” says Yotam Ottolenghi, a chef who needs little introduction. A household name, to cook his recipes has almost become its own cuisine. Preparing a tour that will take him away from the British winter to large theatres and convention centres across Australia’s east coast, I ask, does he find this experience strange: taking to the stage not the kitchen? “I pinch myself all the time, I’m blue all over,” he says with genuine bemusement. […]