Cream together the butter and sweetener in a large bowl. Add in the rest of the ingredients and mix well. Optional: add in any mix-ins you like.
Form 24 cookies on 2 parchment-lined cookie sheets. Press down to flatten. Bake for 12 minutes. They will be soft but golden around the edges. Cool completely on the trays before transferring to a storage container.
Notes
Nutrition: the nutrition facts are for 1 cookie. Each serving has 4.3 NET carbs.To Store: keep the cookies in an airtight container at room temperature or in the refrigerator for up to 4 days. To Freeze: flash freeze the cookies first, then put them into a container or freezer bag. Store for up to 3 months. Notes on Sweeteners: