Preheat oven to 350 F.
Mash the bananas with a fork.
Whisk in eggs, oil, and cane sugar.
Then add in the pumpkin, milk and water. Whisk until smooth.
Stir in the flour, baking soda, salt and cinnamon.
Make your filling and topping. Add the butter, flour, brown sugar and cinnamon to a food processor and pulse until coarse crumbs form.
Line your 9x9 baking dish with parchment paper.
Add in half the batter.
Sprinkle half of the filling/topping mixture over the batter.
Then pour on the rest of the batter, spreading it evenly carefully as to leave the filling layer alone.
Sprinkle the rest of the crumble overtop.
Bake for 45-50 minutes.
While the cake is baking, make your maple glaze by whisking all the ingredients listed together.
Once cake is cooled, drizzle the glaze over the whole thing and serve!
