Preheat the oven to 350 degrees F. Line two baking sheets with parchment paper.
Add the butter sugars to the bowl of an electric stand mixer fitted with a beater blade and beat well until completely combined and fluffy.
Add the egg and vanilla and beat them into the mixture. Then scrape down the sides.
In a small bowl combine the flour, salt, and baking soda and stir it all with a fork.
With the mixer on low, slowly add the dry ingredients to the wet ingredients until completely combined. Then stir in the chocolate chips.
Form 1-inch round balls with the dough and place them 2-inches apart on a baking sheet. Bake for 12 minutes, or until dark and slightly crispy around the edges. Remove to a cooling rack to cool completely. Repeat with remaining dough.