Hamantaschen are traditional Purim cookies that are shaped like triangles and filled with various sweet fillings such as fruit preserves, chocolate, or poppy seed paste. These delicious treats are a must-have during Purim celebrations. The dough is made with butter, sugar, eggs, and flour, and it is rolled out and cut into circles. The filling is then placed in the center of each circle, and the dough is folded up to form a triangle shape. The cookies are baked until golden brown and enjoyed by all.