Pork chorizo is a fresh, spicy sausage from Mexico, distinct from its cured Spanish counterpart, made from ground pork seasoned heavily with chili peppers (like ancho and guajillo), garlic, cumin, oregano, and vinegar, giving it a vibrant red color and robust flavor. It's sold loose or in casings, must be cooked before eating, and crumbles easily, making it versatile for tacos, eggs, potatoes, and more.