Preheat your oven to 325°F (165°C). Line a baking sheet with baking paper or a silicone baking mat.
In a mixing bowl, combine the almond flour, ground ginger, ground cinnamon, baking soda, and salt. Stir until well mixed.
In another bowl, using an electric mixer or by hand, mix together the softened butter and Erythritol until the mixture is smooth and well combined.
Beat in the egg and vanilla extract into the butter mixture until fully incorporated.
Gradually add the dry ingredient mixture to the wet ingredients, mixing until a cookie dough forms. Ensure everything is well combined.
Roll the cookie dough into small balls about 1 inch in diameter. Place them on the prepared baking sheet, leaving some space between each.
Use the bottom of a glass or your fingers to gently flatten each cookie to your desired thickness. The thinner you flatten them, the crispier they will be.
Bake the cookies in the preheated oven for 10-12 minutes or until the edges turn golden brown. Keep an eye on them to prevent over-baking.
Allow the cookies to cool on the baking sheet for a few minutes before transferring them to a wire rack to cool completely.