This breezy Basque tapas bar is one of the best places in Madrid to sample the creativity of bite-sized pintxos (Basque tapas) as only the Basques can make them. It’s the perfect combination of San Sebastián–style tapas, Madrid-style pale-green/red-black decoration and unusual angular benches. The prices quickly add up, but it’s highly recommended nonetheless.
There's also a more formal Basque restaurant out the back.