Hubby said this was too tart but I think he's just not a fan of passionfruit. I enjoy the depth of flavour, more 'special' than plain apple crumble! Instead of pre-packaged Anzac biscuits (couldn't find vegan version) I made up the basic Anzac mixture and put it on top of the crumble wet and cooked for an extra 5 minutes so it was like a cookie baking ON the crumble... Very good! Thanks for the recipe Scarlett! Made for the Australian leg of ZWT5.