01 - Preheat oven to 350°F. Line a baking sheet with parchment paper.
02 - In a large bowl, whisk together almond flour, chopped hazelnuts, erythritol, salt, and baking soda until evenly distributed.
03 - In a separate bowl, whisk melted butter, egg, and vanilla extract until fully incorporated and smooth.
04 - Pour wet mixture into dry ingredients. Stir until a thick, cohesive dough forms.
05 - Drop tablespoonfuls of dough onto prepared baking sheet, leaving 2 inches between each. Flatten slightly with back of spoon.
06 - Bake for 10–12 minutes until edges turn golden brown. Let rest on baking sheet 5 minutes, then transfer to wire rack to cool completely.
07 - Microwave chocolate chips and coconut oil in 30-second intervals, stirring between each, until melted and smooth.
08 - Drizzle chocolate over cooled cookies and sprinkle with reserved chopped hazelnuts. Let chocolate set before serving.