01 - Preheat oven to 350°F and line a baking sheet with parchment paper.
02 - Toast sliced almonds in a dry skillet over medium heat until golden and fragrant, about 2–3 minutes. Set aside to cool.
03 - Whisk together almond flour, erythritol, baking powder, and sea salt in a medium bowl.
04 - In a separate bowl, whisk the egg, melted butter, vanilla extract, and almond extract until smooth.
05 - Incorporate wet ingredients into dry ingredients, stirring until a dough forms.
06 - Fold the toasted almonds gently into the dough.
07 - Scoop heaping tablespoons of dough onto the prepared baking sheet, spacing them approximately 2 inches apart, then flatten slightly using fingers or back of a spoon.
08 - Bake for 12–15 minutes, or until edges are golden brown.
09 - Allow cookies to cool on the baking sheet for 10 minutes before transferring to a wire rack to cool completely.