PREHEAT oven to 165°C (fan-forced). Grease 2 tart rings.
Cook apples with butter, sugar & cinnamon until tender but not mushy. Cool down.
Mix all crumble ingredients until crumbly perfection.
Whisk eggs & sugar, then fold in flour, milk, and melted butter.
Pour cake mix into tart tins, layer with apples, then top with crumble.
BAKE for 45 mins–1 hr until golden & a skewer comes out clean.
