Preheat oven to 375ยบ.
Using a mixer, beat butter with sugar and brown sugar until just creamy.
Add vanilla and egg. Mix on low until incoporated.
Add in baking soda, sea salt, and flour. Mix until dough is shaggy.
Stir in chocolate chips by hand. Roll into balls and place on cookie sheet lined with parchment paper.
Bake 9-12 minutes, until cookies are lightly golden. Don't over bake, as cookies will become crunchy and not soft.
Cool and enjoy.