Can Paixano

This lofty double-name cava bar has long been run on a winning formula: its own super-affordable bubbly rosé, served in elegant little glasses and combined with bite-sized entrepans (filled rolls) and tapas (€2 to €4). It's usually packed, so elbowing your way to the bar can be a titanic struggle. There's another branch at El Poblenou's Mercat dels Encants.