01 - Preheat the oven to 350°F and line a baking sheet with parchment paper.
02 - In a medium bowl, whisk together almond flour, coconut flour, baking soda, and salt until evenly distributed.
03 - In a large bowl, beat the softened butter and erythritol until light and fluffy, approximately 2 minutes.
04 - Add the egg, espresso, vodka, and vanilla extract to the butter mixture. Mix until well combined and smooth.
05 - Gradually add the dry ingredients to the wet ingredients, stirring until a soft dough forms.
06 - Fold in the sugar-free chocolate chips until evenly distributed throughout the dough.
07 - Scoop tablespoon-sized portions of dough onto the prepared baking sheet, spacing them about 2 inches apart. Slightly flatten each cookie with your fingers or a spoon.
08 - Bake for 10 to 12 minutes, or until edges are golden brown and centers are set.
09 - Cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely before serving.