Hazelnuts also known as filbert is a type of nut mostly cultivated in Turkey, Italy, Spain and the United states. Hazelnuts have a sweet flavour and are eaten raw, roasted or ground into a paste. Hazelnuts add a delicious flavour to baked goods such as cookies, cakes and tarts. Or grind hazelnuts and make a paste and combine with molten chocolate to make a tasty spread. Store in a cool and dry place.