01 - Preheat oven to 350°F (175°C). Grease and flour a 9-inch round or square cake pan.
02 - In a large bowl, whisk together mashed bananas, oil, eggs, sugar, and vanilla until fully incorporated.
03 - In a separate bowl, sift together the flour, baking powder, baking soda, and salt.
04 - Gradually add the dry mixture to the wet mixture, stirring gently until just combined. Avoid overmixing.
05 - Fold in the chocolate chips, reserving a small handful for topping.
06 - Pour batter into the prepared pan. Evenly sprinkle reserved chocolate chips over the surface.
07 - Bake for 40 to 45 minutes, or until a toothpick inserted in the center comes out 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 before slicing.