Porvoo’s most atmospheric cafes and restaurants are in the Old Town and along the riverfront. For cheaper eats, hit the area around the kauppatori market square. Porvoo is famous for its sweets, which you'll discover in the cafes and confectioners in the Old Town.
A local speciality is Runeberg torte: an almond-rum cake topped with sugar icing and raspberry jam that was supposedly the favourite breakfast of national poet Johan Runeberg. Traditionally it's a treat eaten on the poet's birthday, but in Porvoo you can sample it on any day at the Helmi Tea & Coffee House.