Preheat oven to 350 degrees. Line two baking sheets with parchment paper. Set aside.
In a medium bowl, whisk together flour, baking soda, and salt. Set aside. In a large bowl, beat butter and sugars together until creamy, about 2 minutes. Add egg and vanilla and beat until combined.
Add flour mixture to butter mixture and mix slowly. Add chocolate chips and mix until combined.
Scoop dough onto prepared baking sheets in balls of about 2 tablespoons. Make sure to keep at least 2 inches between each dough ball, with 12 cookies on one baking sheet and 6 cookies on the other.
Bake cookies in a preheated oven for 13 minutes or until the edges are deep brown and the tops are golden brown. Remove from oven and let cool for 5 minutes before eating.