01 - Preheat the oven to 350°F (175°C). Grease and flour a 9-inch round or square cake pan.
02 - In a large mixing bowl, whisk together the mashed bananas, vegetable oil or melted butter, eggs, granulated sugar, and vanilla extract until the mixture is smooth and fully blended.
03 - In a separate bowl, sift together all-purpose flour, baking powder, baking soda, and salt.
04 - Gradually add the dry ingredients to the wet mixture, stirring gently with a spatula until just combined. Avoid overmixing.
05 - Fold in the semisweet chocolate chips, reserving a small handful to sprinkle on top of the batter.
06 - Transfer the batter into the prepared cake pan and scatter the 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 only a few moist crumbs attached.
08 - Allow the cake to cool in the pan for 10 minutes before transferring to a wire rack to cool completely prior to slicing.