This recipe is very similar to the previously posted beef book tripe recipe: Doubanjiang Bell Pepper Tripe (郫縣豆瓣酱青椒牛百葉, Pei4 Jyun6 Dau6 Faan6 Zoeng3 Ceng1 Ziu1 Ngau4 Baak3 Jip6). This recipe uses Poblano chilies, instead of green bell peppers, to give the dish a slightly spicier taste. Poblano chili’s green color is deeper than the bell peppers, so the color gives the dish more contrast against the red of the Doubanjiang. Beef book tripe is another of the cow’s stomachs that are readily available at your local Asian market. While the honeycomb tripe has a honeycomb pattern on one side, the book tripe resembles a book with open pages. The book tripe is commonly served as a Chinese Dim Sum dish and has a crunchier texture than the honeycomb.