Preparation:
1. First create portions of Nutella on a sheet of baking paper and put in the freezer.
2. Mix sugar, brown sugar, butter and vanilla extract.
3. Then add egg, flour and yeast.
4. Finally add the chocolate chips.
5. Leave in the fridge for 20 minutes.
6. Shape the biscuits and bake at 190° for 13/14 minutes.