Today, June 17, 2014, is National Apple Strudel Day. Apple strudel is a traditional Viennese strudel, a popular pastry in Austria and in many countries in Europe that once belonged to the Austro-Hungarian empire. "Strudel" a German word, derives from the Middle High German word for "whirlpool" or "eddy" The oldest known strudel recipe is from 1696, a handwritten recipe housed at the Wienbibliothek im Rathaus.