Battle of the Hamantashen filling Shabbat

Adar is here, and with it inarguably one of the best Jewish holiday foods. Come for a Shabbat dinner, but also come prepared to defend your favorite hamantashen filling. According to Jonah, there is a correct answer, and anyone who doesn't say poppyseed is wrong. We will have hamantashen, and you will be (begrudgingly) permitted to eat non-poppyseed variants.