Preheat the oven to 350 F. Grease a rectangle baking pan (about 10 inches long) and put the baking paper in there (the oil makes it stick better).
Mix the flour, oil, corn starch, baking powder, soda, syrup, sugar, vanilla extract, cacao, salt and plant-based milk together in a bowl.
Smash the bananas and put them in the bowl together with the other ingredients and blend.
Fill the prepared baking pan with the dough and add some chocolate chips to the top.
Bake the banana bread for around 40 to 50 minutes or until an inserted toothpick comes out without any dough sticking on it. (If you want a softer banana bread don't bake it for too long!)
Let the cake cool down and take it carefully out of the baking pan together with the baking paper.
Cut the chocolate banana bread into slices and enjoy!