Hamantaschen refer to "pastries" with poppy seeds, apricot, prune or honey filling. It is a Jewish dessert; a three-cornered Jewish cookies filled with poppy seed, prune, or other dried fruit mixtures. Hamantaschen, moreover, are triangular cookies filled with poppy seed, prune, or apricot. It is prepared by making the Hamantaschen cookie dough, then the preparation of the scrumptious filling. Fresh poppy seeds are available in Jewish, Polish, Middle Eastern, or gourmet markets. It can be used whole for a filling with a crunchy texture or can be made into a smooth filling by grinding the poppy seeds in spice or coffee grinder. Personal Note: I love poppy seeds on cakes and tarts. It is one of the best things that happen to me in Germany. Although, it is very nice to have its crunchy texture, eating cake with the smooth grinded poppy seeds is heavenly.