This small bakery and café in Camões Square only sells addictive custard tarts (pastéis de nata) and it is ruining our waistlines! These tarts are just perfect: buttery and served warm, then sprinkled with cinnamon. It's a small place, but it has a large glass window to the kitchen where you can watch the fabulous bakers do wonders with the puff pastry and the custard. They’ll even pose for photos. It's open every day until midnight and queues are often worse at night.