Preheat oven to 370F degrees. Line a 9x9 inch baking pan with aluminum foil and spray with non-stick cooking spray. Set aside.
Whisk together the flour, baking soda, and salt in a medium size bowl. Set aside.
In a large bowl, using an electric or stand mixer, cream together the butter, granulated sugar, light brown sugar, and vanilla extract until combined.
Add eggs one at a time, mixing between each egg.
Add flour mixture and mix until just combined. DO NOT OVERMIX!
Using a spatula, stir in chocolate chips until combined.
Press dough into prepared baking pan. Bake for 20-23 minutes or until edges are lightly golden brown. Let bars cool completely before cutting into squares.