Plekken in Centro / Sol-Gran Vía

The Villalón brothers' wine temple just off Gran Vía

1860 tavern of legendary bacalao, croquetas and Madrid history

The locals' temple of battered bacalao near Plaza Mayor

Churros con chocolate in a marble-and-tile room since 1894

The world's oldest restaurant, a once-in-a-lifetime cochinillo pilgrimage