Preheat oven to 350.
Sift flour and baking soda, set aside.
Cream sugars and butter until pale and fluffy.
Beat in vanilla and salt.
Add eggs one at a time.
Beat in flour gradually at low speed until just combined.
Fold in chips.
Drop onto cookie sheet lined with parchment using a 1 inch scoop or rounded tsp.
Bake 8-10 minutes or until edges are just browned. Let cool on sheet for 2 minutes, transfer to wire rack.