Add almond flour, sweetener, xantham gum, and baking powder in a large mixing bowl. Mix everything together until thoroughly combined. Then add softened unsalted butter and vanilla extract. Mix until the butter has fully incorporated then add chopped roasted hazelnuts and chocolate chips. Mix to combine and scoop the dough into your hands to form a dough ball. Use 2 tablespoons of dough per cookie for even cookies.
Place the dough balls on a parchment-prepared baking sheet and press them down to shape. These cookies won’t spread as much in the oven so we’ll need to shape and flatten them beforehand. Add a couple more chocolate chips on top of each cookie and gently press them down into the dough.
Bake for 20-25 minutes. If your oven has hot spots, make sure to turn the baking sheet at the halfway point. Sprinkle them with some flaky sea salt and let them cool down completely before moving or eating them. Enjoy!