In a small bowl, mix together flour, baking soda and salt. Set aside.

Add butter, sugar and brown sugar to a mixing bowl and beat well until light and fluffy, about 5 minutes. Add egg and vanilla and beat well. Add flour mixture and beat just until combined. Fold in chocolate chips.

Using a 2 tablespoon portion scoop, scoop batter into rounds and place onto a baking sheet lined with parchment paper. Refrigerate for 30 minutes.

Preheat oven to 375 and line a baking sheet with parchment paper. Place dough, 2" apart on baking sheet and bake for 11-13 minutes or until browned. Let stand on baking sheet for 2 minutes and transfer to a wire rack to cool completely.

Repeat until all dough is baked, keeping dough in the refrigerator until ready to bake.