Preheat the oven to 350°F (175°C) and grease a 9x13 inch baking pan.

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

In another bowl, cream together the softened butter, brown sugar, and granulated sugar until smooth.

Add the eggs one at a time, mixing well after each addition, then stir in the vanilla extract.

Gradually blend in the dry ingredients until just combined.

Fold in the chocolate chips.

Spread the batter evenly into the prepared baking pan.

Bake for 25-30 minutes or until the edges are golden brown and a toothpick inserted in the center comes out clean.

Allow to cool in the pan before cutting into bars.