Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
In a mixing bowl, mash the ripe bananas until smooth.
Add the softened butter and mix until well combined.
Stir in the brown sugar and granulated sugar until creamy.
Add the egg and vanilla extract, mixing until fully incorporated.
In a separate bowl, whisk together the flour, baking soda, and salt.
Gradually add the dry ingredients to the banana mixture, stirring until just combined.
Fold in the chocolate chips gently.
Using a cookie scoop, drop spoonfuls of dough onto the prepared baking sheet.
Bake for 10-12 minutes or until the edges are lightly golden.