01 - Preheat oven to 350°F and line a baking sheet with parchment paper.
02 - In a medium bowl, whisk together almond flour, baking soda, salt, and powdered erythritol until evenly distributed.
03 - In a separate large bowl, combine melted butter, almond butter, egg, and vanilla extract, stirring until smooth and creamy.
04 - Gradually fold the dry ingredient mixture into the wet ingredients, mixing gently until a soft, cohesive dough forms. Be careful not to overwork the dough.
05 - Scoop tablespoon-sized portions of dough onto the prepared baking sheet, spacing them about 2 inches apart. Flatten each cookie slightly using the back of a spoon.
06 - Bake for 10 to 12 minutes, or until the edges are golden brown. Remove from the oven and allow the cookies to cool completely on the baking sheet.
07 - In a small bowl, whisk together powdered erythritol, unsweetened almond milk, and vanilla extract until a smooth, pourable consistency is reached. Add more almond milk as needed to thin.
08 - Drizzle the glaze evenly over the cooled cookies and allow to set for about 10 minutes before serving.