Step 1: Preheat your oven to 350°F (175°C).
Step 2: In a mixing bowl, combine hazelnut butter and granulated sweetener until creamy. Add vanilla extract if using.
Step 3: Crack in the egg and mix until smooth and well combined.
Step 4: In a separate bowl, whisk together cacao powder and sea salt. Gradually add to wet ingredients, stirring until a thick dough forms.
Step 5: Scoop and shape the dough onto a prepared baking sheet, leaving space between cookies.
Step 6: Bake for 10-12 minutes until edges are set and centers are slightly soft.
Step 7: Cool on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.
