Preheat oven to 350°F (175°C). Grease a 9-inch round cake pan and line with parchment paper.
In a medium bowl, whisk together flour, baking soda, and salt.
In a large bowl, beat softened butter, granulated sugar, and brown sugar until creamy.
Add eggs one at a time, then stir in vanilla extract.
Gradually mix in dry ingredients until combined.
Fold in semi-sweet chocolate chips.
Press dough evenly into the prepared pan.
Bake for 20-25 minutes until edges are golden and the center is set.
Cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.
Decorate with frosting or sprinkles as desired.