Preheat the oven to 350°F (175°C) and line a baking sheet with parchment paper. In a large bowl, cream together the softened butter and sugar substitute until smooth. Add eggs and vanilla extract, mixing well.
Combine all dry ingredients in a separate bowl, then gradually mix into the wet ingredients until a dough forms. Fold in chocolate chips. Drop rounded tablespoon-sized portions onto the prepared baking sheet, leaving space between each cookie. Flatten slightly with the back of a spoon and bake for 12-15 minutes until edges are lightly golden.