The hazelnut is a type of dried nut, with a distinctive flavor, used in making foods such as pralines and Nutella, and hazelnut liqueurs. Hazelnut oil is used as a distinctively flavored cooking oil. Hazelnuts are high in protein and fats.
Hazelnuts in the shell, are a small brown nut that is shaped almost like a toy top. When shelled they have a brown husk and a creamy white nut.