Chorizo in Spain is a grocery product, a kind of sausage with the stuffing into guts, made with pork meat and fat somewhat marinated with lots of paprika, hence the red color. Some types must be cooked, so you eat them with eggs, potatoes into a garbanzo or bean stew, with migas... but other types are cured and are eaten like ham or salami. In most South America countries they call chorizo to very different things, in some countries it's a kind of sausage but different to the Spanish type, or even a minced meat cured or marinated. Either way it's usually delicious