Preheat your oven to 350°F and line a baking sheet with parchment paper.
In a bowl, whisk together almond flour, oats, baking soda, and salt.
In another bowl, mix almond butter, sugar substitute, egg, and vanilla until smooth.
Combine the wet and dry ingredients, stirring until a dough forms. Fold in chocolate chips if using.
Scoop tablespoons of dough onto the baking sheet, leaving space between each cookie.
Bake for 10 to 12 minutes, until edges are golden. Let cool before moving them—they firm up as they cool.