For the crumble, place flour and coconut in a bowl. Using your fingertips, rub in the oil until it resembles fine crumbs.
Add baking powder, sugar and a pinch of salt.
Squeeze mixture together into some bigger pieces, then chill for 15 minutes or until required.
Preheat oven to 180°C. Place oil in a large pan over high heat, add the sugar and let it cook over low-medium heat. It will look like a caramel sauce.
Add apple and cinnamon and cook, stirring occasionally, for 6-8 minutes until sauce starts to thicken slightly.
Stir in rooibos and corn flour. Add everything to a ovenproof dish
Scatter over the crumble.
Bake for 40-45 minutes until the crumble is golden.
Serve with dairy free ice cream.