One of the popular tapas served in bars and taverns of northern Spain is Banderilla. These easy treats got their name from spears (one end has the spear and the other ruffled paper of different colours) used during bullfight by banderilleros, who attempt to plant them into the bull's shoulders. Banderilla as cold spicy-sour tapa is made from green olives, spicy pickled green peppers (guindillas), anchovy or tuna preserved in olive oil and pickled cucumbers; skewered together. Sometimes other pickled ingredients as onions, red pepper or carrots are added.
spicy pickled green peppers
Drain and skewer the ingredients onto the toothpicks or skewers. Serve with cold beer.