sentences:  Unlike many Chinese pancakes, which often contain savory meat fillings, today "hotteok" are stuffed with sweet fillings, to suit South Koreans' culinary tastes.The types of "hotteok" have been changing continuously although many favour the traditional cinnamon and peanut filling.Many variations have developed since the early 21st century, such as green tea hotteok, pink "bokbunja hotteok", corn "hotteok", pizza "hotteok" and more.