01 - Preheat oven to 350°F. Line a baking sheet with parchment paper.
02 - In a large bowl, whisk together the almond flour, coconut flour, powdered sweetener, baking soda, salt, and cinnamon if using.
03 - In a separate bowl, combine the melted butter, egg, sugar-free maple syrup, and vanilla extract, whisking until fully incorporated.
04 - Pour the wet mixture into the dry ingredients and stir until a uniform dough forms.
05 - Gently fold the chopped pecans into the dough until evenly distributed.
06 - Scoop heaping tablespoons of dough onto the prepared baking sheet, spacing them about 2 inches apart. Flatten each mound slightly with your fingers or the back of a spoon.
07 - Bake for 16 to 18 minutes, or until the edges are golden and the centers are set.
08 - Allow the cookies to cool on the baking sheet for 10 minutes, then transfer to a wire rack to cool completely. The cookies will crisp as they cool.