In a mixing bowl, combine the butter, almond flour, sugar or substitute of choice, brown sugar, egg, vanilla, baking soda, and cream of tartar and blend with a mixer until well combined (the mixture will be stiff).
Refrigerate:
Cover the bowl with plastic wrap or a lid and chill one hour or longer.
Prep:
When you're ready to bake the cookies, preheat the oven to 350 F.
Combine 2 tablespoons sugar or sugar substitute, 2 teaspoons brown sugar, and cinnamon in a small dish.
Roll the dough:
Scoop out heaping teaspoons of dough, and roll dough into balls about 1 inch across.
Roll each ball in the cinnamon mixture and put on cookie sheet 2 inches apart.
Bake:
Place on a baking sheet lined with parchment paper, and bake for 14-16 minutes, or until they start to brown.
Serve:
Remove cookies to a cooling rack and let cool for 20-30 minutes before serving.