01 - Preheat the oven to 350°F. Line two baking sheets with parchment paper.
02 - In a medium bowl, whisk together the almond flour, tapioca starch, cocoa powder, espresso powder, baking soda, and salt until evenly distributed.
03 - In a large bowl, whisk together the melted butter, brown sugar, and granulated sugar until smooth. Add the egg and vanilla extract, then whisk until fully combined.
04 - Add the dry ingredients to the wet mixture and stir with a spatula until just combined. Do not overmix.
05 - Gently fold in the chopped dark chocolate and roasted almonds until evenly distributed throughout the dough.
06 - Scoop the dough into 1 ½ tablespoon-sized mounds and place them 2 inches apart on the prepared baking sheets.
07 - Bake for 10–12 minutes, or until the edges are set and the centers still look slightly soft.
08 - Let the cookies cool on the baking sheets for 5 minutes, then transfer to a wire rack to cool completely.