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
Gopchang-jeongol chili peppers are seeded and chopped and onions and carrots are chopped into pieces the same size as the peppers. Scallions are cut into long diagonal strips. In a pan, the remaining vegetables are placed on the bottom, and the marinated beef tripe and brisket are placed over them in a circular fashion. The shredded mushrooms and sliced vegetables are arranged between the tripe and meat. The prepared broths are mixed together, seasoned with salt, and poured little by little into the pan. When the dish is cooked, any floating foam is skimmed off and the "gopchang jeongol" is served.