MasterChef recap: Heston Blumenthal churns through a pretty drippy dessert challenge Ben Pobjie Photo: Supplied Five of the best amateur cooks left in Australia after the first twelve seasons of MasterChef face off for immunity from the next elimination, and to win it they must confront their greatest challenge yet: a task set by the culinary world's master innovator, the man who put the "WTF" in "WTF is he cooking?" It will be a test not just of their skill and ingenuity, but their ability to refrain from rolling their eyes on camera. It is of course the climax of Superstar Week, so there was always going to be a major celebrity appearing before the series moves on to less glamorous weeks, like Gruel Week and Stealing Food From IGA Week.