A staple in Chinese food is bing, a wheat flour-based flattened or disk-like item that resembles the parathas, crêpes, and pancakes of non-Chinese cuisines. In stateside Chinese restaurants, you’ve likely encountered it on the menu as “scallion pancakes,” also known as cong you bing. But there’s also chun bing, which is a bit thinner, and other kinds of bing that might include egg in the batter. In Taiwan, dan bing is a traditional breakfast food sold by street vendors every