la espiga:::la delicia (anchovies, hard-boiled egg, mayo, parsley-onion-garlic vinaigrette)

San Martzial Kalea, 48::Donostia-San Sebastián

This is not just any pintxo.  This is a classic among locals of Donosti, and all the more interesting because its fame is in no way expressed on any menu or any blog. Except the yearlong exploration of Spain's best food cities, 365, by the same kind friends who took me to try it for the first time.