A spicy Mexican soup made from tripe is called menudo. It is a traditional dish made with beef tripe (cow's stomach) simmered in a richly spiced broth that typically includes dried red chilies such as guajillo and ancho, garlic, onions, and various seasonings like oregano and cumin. Menudo often also contains hominy (dried corn kernels) and may include other ingredients like beef or pig's feet for added richness. The soup is known for its deep, earthy flavor and is commonly garnished with lime, chopped onions, cilantro, and dried oregano. Menudo is simmered for several hours until the tripe becomes tender, creating a hearty and flavorful soup. The red chili sauce is made by soaking and blending dried chilies to provide the signature spicy and smoky taste of the broth. Menudo is sometimes considered a hangover cure and is traditionally served with warm tortillas.

In summary, the spicy Mexican soup made from tripe is Menudo, a classic dish cherished for its rich flavors and comforting qualities.