Preheat the oven to 350°F (175°C). Line a baking sheet with parchment paper.

In a large bowl, cream together the softened butter and sweetener until light and fluffy, about 2-3 minutes.

Add the egg and vanilla extract to the butter mixture and beat until well combined.

In a separate bowl, whisk together almond flour, cinnamon, baking soda, and salt.

Gradually add the dry ingredients to the wet ingredients, mixing until a soft dough forms.

If using, fold in the chocolate chips or chopped nuts.

Using a tablespoon or cookie scoop, place rounded portions of dough onto the prepared baking sheet, spacing them about 2 inches apart.

Gently flatten each cookie with the palm of your hand or the bottom of a glass.

Bake for 12-15 minutes, or until the edges are golden brown.

Allow cookies to cool on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.