Mix together flour, baking soda, and salt in a medium bowl and set aside.
In a large bowl whisk together coconut oil and sugar, then beat in egg and vanilla. Add flour mixture. Stir in chocolate chips. If dough seems too sticky, chill for 30 minutes.
Scoop or drop by spoonfuls onto cookie sheets and bake 8-10 minutes. Let cool on pan slightly before transferring to a rack to cool completely.