Preheat the oven to 180°C.
In a large bowl, whisk together the eggs, maple syrup, liquid sweetener, vanilla extract, almond milk, soy butter and yoghurt.
Add the flour, cornstarch, baking powder, baking soda, cinnamon and salt.
Add half the batter to a baking dish. Drizzle the filling in top, you can use a skewer to spread it. Add the other half of the batter and add the crumble on top. It might not look like a crumble, but you can create the crumble yourself.
Bake for 45-55 minutes. Let it rest for 10 minutes and drizzle a glaze on top.