Hazelnuts, also known as filberts or cobnuts, are nutrient-rich edible seeds of the Corylus avellana tree. Encased in a smooth, hard shell, the kernels have a distinctive sweet, buttery flavor and crunchy texture, making them a favorite in both savory and sweet dishes. Hazelnuts are prized for their high content of healthy fats, protein, vitamins, minerals, and antioxidants.

They are widely used in confectionery products such as pralines, truffles, and chocolate spreads, as well as in baked goods, nut butters, and savory recipes. Hazelnuts can be consumed raw, roasted, chopped, or ground into flour, offering versatility in culinary applications. With their rich flavor profile and health benefits, hazelnuts are both a gourmet ingredient and a wholesome snack.