Menudo (soup) added (though jalapeño or chopped green chilies may be added to the broth to replace the spice found in the red version), thus giving the broth a clear or white color. Adding "patas" (beef or pigs feet) to the stew is popular in the U.S. but not universal. In some areas of central Mexico, "menudo" refers to a stew of sheep stomach, "pancitas" stew of beef tongue. In South-Western Mexico (in and around the Distrito Federal, Morelos, and Guerrero) it is called "panza" or "panza guisada". The red variation is usually seen in Chihuahua, the northern state adjoining Texas. It
Beef noodle soup type of beef noodles tends to be spicy, as garlic, chili oil, doubanjiang or five-spice powder may be added - classic flavor elements of Sichuan cuisine. There are several variations with the soy-based broth, such as spicy, tomato, garlic and herbal medicine. The tomato variation () is popular in Taiwan and features chunks of tomatoes in a rich red-coloured tomato broth with or without soy sauce. The herbal medicine variation is usually served without suancai as a topping (as its acidic properties are believed to inhibit medicinal properties) and may be accompanied by a chili paste made from beef lard.