Sophie Fisher on Instagram: "The viral upside-down blueberry cheesecake made with @activiaaustralia yoghurt which has probiotics 100x stronger in survivability^ against stomach acid compared to regular yoghurt culture, for more to reach to the gut alive. Plus, it gives the yummiest vanilla flavour. Blueberry compote 2 1/2 cups frozen blueberries Juice 1/2 a lemon Splash of water Base 300g sugar-free digestive biscuits 1/3 cup butter, melted Filling 3 cups Activia vanilla yoghurt 400g cream chees