Preheat oven to 180C.
Peel, core and thinly slice apples. Dissolve the arrowroot in the apple juice or water. Set aside.
Place apples and raisins in the baking dish, add sugars and spices and combine everything well (you may need to use your hands to do this). Pour arrowroot mixture over everything.
To prepare the topping, in a medium bowl, combine all dry ingredients. Add oil, soymilk, and vanilla, mix well.
Crumble topping over the apples. Bake for 45 minutes.
Remove from oven and let cool at least 15 minutes before serving.