El Portalón
With rustic red-tile floors, bare brick walls, and ancient beams and coats of arms, this 15th-century inn turns out classical Castilian and Basque specialties reflective of the region. Try the cochinillo lechal (roast suckling pig) or any of the monkfish preparations. The wine cellar is a gold mine. To reserve a tasting menu, priced at around €60, be sure to call at least two days ahead.