Combine oats and flour for the crumble layer in a large bowl and set aside. Using a blender or vitamix combine the remaining ingredients - dates, shredded coconut, coconut oil, soy/almond milk and blend until smooth. Add this mixture to the oat and flour and mix well. Grease a baking sheet and spread the mixture out flat about 1/4" thick - Bake for 12 mins or until golden brown. Once it is done TURN OFF oven - break the flat "cookie" apart into small pieces and place back in the oven for a few minutes - creating a granola-like, crunchy topping.
While the Crumble is baking
Cut plums into bite size pieces and combine in bowl with vanilla and maple syrup - set aside.
In a small bowl mix the chia pudding ingredients together and set aside to allow it to thicken.
Using a blender or vitamix blend the banana and coconut milk forming a creamy texture.
Layer the plum mixture in the bottom of the mason jars, next add the coconut cream, the chia pudding and top with the crumble.