Preheat your oven to 350°F. Line a baking sheet with parchment paper.

In a bowl, whisk together the flour, baking soda, and salt.

In a large bowl, mix melted butter, brown sugar, and granulated sugar until well combined.

Add the egg and vanilla extract to the wet mixture and beat until smooth.

Stir in the mashed bananas.

Gradually add the dry ingredients to the wet ingredients, mixing just until combined.

Fold in the chocolate chips.

Drop spoonfuls of dough onto the prepared baking sheet, spacing evenly.

Bake for 10 minutes or until edges are golden brown.

Remove from oven and allow cookies to cool on a wire rack.