Turn on the oven at 180°C static function top and bottom.
In a bowl put all the dry ingredients (flour, sugar, baking powder) and mix with a kitchen whisk.
Add the water and oil and mix until you have a well-blended mixture.
Take a rectangular baking pan (30x10cm) and butter it with vegan butter and then flour it with a dusting of flour.
Add the blueberries to the dough and then pour the dough into the baking dish.
For the surface
Sprinkle the surface with a spoonful of brown sugar and almond granules.
Bake the cake and let it bake for at least 45-50 minutes. Remember to do the toothpick test to make sure the cake is cooked: Insert a toothpick into the cake; the cake will be ready if it is dry when you take it out.