01 - Preheat oven to 350°F (175°C). Lightly grease and flour a 9-inch round or square cake pan.
02 - In a large bowl, whisk together mashed bananas, vegetable oil, eggs, granulated sugar, and vanilla extract until fully blended.
03 - In a separate bowl, sift together all-purpose flour, baking powder, baking soda, and salt.
04 - Gradually blend the dry ingredient mixture into the wet ingredients, stirring gently just until incorporated. Do not overmix.
05 - Fold chocolate chips into batter, reserving a small handful for topping.
06 - Pour batter into the prepared cake pan and sprinkle reserved chocolate chips evenly over the surface.
07 - Bake in the preheated oven for 40 to 45 minutes, or until a toothpick inserted into the center emerges clean or with a few moist crumbs.
08 - Allow cake to cool in the pan for 10 minutes, then transfer to a wire rack to cool completely prior to slicing.