1. Preheat the oven to 350°F (180°C). Line a baking sheet with baking parchment. Place the hazelnuts on the baking sheet and toast for 6-8 minutes. Take out of the oven and let cool down a bit, then chop roughly. Set aside. Do not turn off the oven.

 

2. Add the butter and xylitol to a large bowl and mix until light and fluffy. Add the vanilla extract and egg and mix until well combined. Mix the flour with baking powder, and salt. Add to the bowl and mix in. Add the chopped hazelnuts and chocolate chips and fold in. Use a cookie scoop or spoons to place dough portions with some space in between on the prepared baking sheet. Bake for 12-14 minutes until slightly golden in color. Take out of the oven and let cool down a bit on the baking sheet, then transfer to a wire rack and let cool down completely. If you could not bake everything at once, repeat with the remaining dough.