Preheat your oven to 350°F / 175°C.
Line two large baking sheets with parchment paper.
In a large bowl, whisk together the dry : almond flour, cocoa powder, stevia, baking powder, and salt until well combined and free of lumps.
Add the wet to the dry mixture: the beaten egg, melted butter, vanilla extract, and crunchy almond butter.
Mix until a thick, cohesive dough forms.
Gently fold in the chopped almonds until they are evenly distributed throughout the dough.
Drop rounded tablespoons of dough onto the prepared baking sheets, spacing them about 2 inches apart to allow for spreading.
Bake for 12–14 minutes, or until the edges are set and the centers are still slightly soft.
Allow the cookies to cool on the baking sheets for 5 minutes before carefully transferring them to a wire rack to cool completely.