Hazelnuts are small, round nuts that grow on the hazel tree. They have a smooth, brown shell and a rich, slightly sweet flavor. Hazelnuts are commonly used in various culinary dishes, including desserts, spreads, and snacks. They are also a key ingredient in popular products like Nutella. These nuts are not only delicious but also nutritious. They are a good source of healthy fats, vitamins, and minerals, particularly vitamin E and magnesium. Hazelnuts can be eaten raw, roasted, or ground into flour, making them a versatile addition to many recipes.