Roig Robí, one of Barcelona's great Catalan restaurants, has just launched a truffle-focused menu, and that's reason enough to return today. Round tables, white tablecloths, the warmth of wood, a wine cellar stocked with Catalan wines, and a garden that, in good weather, is truly inviting. So much so, that right on the restaurant's entrance you'll read: "Roig Robí, restaurant with a garden."