The participating shops offer their clients a special pintxo snack which must be made with two ingredients proposed by their chefs.
This week event attracts all members of the public who want to enjoy a different culinary experience.
On the last day, a jury formed by professional chefs elects the winning pintxo.
On the other hand, among all the participants who carry out their own selection of the best pintxo by voting through a QR code that they will find in the participating sales, a check for €200 will be drawn to be spent in one of the associated sales.