Hazelnuts, also known as filberts, have a smooth, brownish skin and a slightly creamy texture. They are a small chickpea-shaped tree seed that have a cream coloured, tender flesh covered in a thin brown papery skin. They can be roasted and used as filler in mixed nuts, to produce nut liqueurs, and the sweet syrup flavourings used in hot beverages. Whole Raw Filberts can also be used in cookies such as chocolate biscotti or for making brittle.