Preheat oven to 350oF (180oC).Line a loaf pan 4.5 x 8.5 inch (11 x 22 cm) with parchment paper liners. Set aside. Place bananas in a large bowl and mash with a potato masher or fork.
Then, add sugar and oat milk. Whisk until sugar is completely dissolved.
Add almond flour, corn starch, baking powder and chocolate chip. Mix well.
Transfer batter to loaf pan. Top with chocolate chips
Bake in preheated oven to 350oF (180oC), rack middle position, 45-50 minutes, or until toothpick inserted in the middle of cake comes out clean.
Let loaf cool down in pan for 10 minutes. Then transfer to wire rack to cool down completely.