Morcilla is a type of blood sausage that is popular in Seville and throughout Spain. It is made from pork blood, rice, onions, and various spices, giving it a unique and savory flavor. Morcilla can be enjoyed grilled, fried, or used as an ingredient in traditional Spanish dishes like fabada or cocido. It is often served as part of a tapas platter or as a filling for sandwiches. Morcilla lovers appreciate its rich and robust taste.