Preheat your oven to 350°F (180°C) and line a large baking sheet with parchment paper.
In a medium bowl, combine the egg, almond butter, and sweetener. Mix well. Add the baking soda, salt, and vanilla. Fold in the chocolate chips until combined.
Scoop the dough into small balls onto the baking sheet. I use a heaping tablespoon of dough per cookie. Gently press down on the dough to flatten slightly.
Bake for 8-10 minutes. The cookies will be very soft when warm, but will crisp up a bit after they cool.
Tip: Make a double batch and freeze half for school lunches!