Top-seeded Treat

The Kol Bo writes that there is a custom to eat zironim on Purim night. Zironim is commonly translated as legumes or seeds. The seeds are reminiscent of the food that Daniel, Chananya, Mishael, and Azariah ate when they refused to eat Nevuchadnezzar’s royal food. The Mishnah Berurah notes that Esther also followed this practice when she was in Achashveirosh’s palace. Perhaps her inspiration was Daniel’s practice. The Levush notes that there is another connection between Daniel and the Purim story. According to the Gemara (Megillah 15a), Hasach, who relayed Mordechai’s message to Esther, was none other than Daniel.
This is commonly believed to be one of the sources for hamantaschen. The triangle pastries were typically filled with poppy seeds. Therefore, eating hamantaschen fulfilled the custom first mentioned by the Kol Bo, later codified by the Rema. However, if this really is the source for hamantaschen, it doesn’t explain the dough part of the pastry, only the filling. In elementary school, students are taught that Haman had a triangular hat. But based on the daf, we can offer an alternative, highly speculative reason for the necessity of the pastry part of hamantaschen.