Catalan chef Alain Guiard, with French roots and education, calls his restaurant 'playful, straightforward and affordable dining option in a five-star Relais Chateaux hotel'. The restaurant, which overlooks one of Barcelona's loveliest squares, is pure magic. The brilliance of the dishes allows for them to be mixed and matched with anarchy. The medium-sized portions are made for sharing, though you might not want to: the egg with parmentier, smoked eel, carbonara foam and tobiko is something you'll want all for yourself. Guiard shows off his strengths with a series of seafood and shellfish dishes, such as a sea bass ragout, cockles and mussels with orange and coconut, which is both a classic dish and at the same time a type of hot ceviche. The crunchy potato tacos with crab, sour cream and caviar are unforgettable.