Hamentashen
Today is the Jewish festival of Purim. One of the customs associated with Purim is the eating of hamentashen — triangular pastries with a sweet filling. (The word is probably Yiddish for “Haman’s pockets”, where Haman is the bad guy in the events commemorated by the festival; in Hebrew they’re called אוזני המן oznei haman, or “Haman’s ears”.)