In the bowl of a stand mixer (or in a large bowl with an electric mixer), cream together butter and sugars.
Add in eggs and vanilla and beat until smooth.
Add flour, salt, and baking soda and beat on low speed until combined. Stir in chocolate chips.
Roll cookie dough into 1½" balls and place about 3" apart on a baking sheet lined with parchment paper (optional -- I just love baking with parchment paper!). Bake for 8-10 (I baked mine 9 exactly) minutes until just starting to brown at the edges (you do not want to overbake! Overbaked cookies will be dry and hard).