Mandelbrot is a traditional Jewish cookie that is often enjoyed during Purim. It is similar to biscotti and is made by baking a dough made with eggs, sugar, flour, and almonds. The dough is shaped into logs and baked until golden brown. Once baked, the logs are sliced and baked again to create a crisp and crunchy texture. Mandelbrot is often enjoyed with a cup of tea or coffee and is a delightful treat during Purim celebrations.