Hamantaschen are traditional Purim cookies that are shaped like triangles and filled with various sweet fillings such as poppy seed, prune, or chocolate. The dough is made with butter, sugar, eggs, and flour, and is then rolled out and cut into circles. The filling is placed in the center of each circle, and the dough is folded up to create a triangle shape. The cookies are then baked until golden brown and delicious. Hamantaschen are a beloved Purim treat and are often enjoyed during the festive holiday meals.