More places now offer filled potatoes but ‘Under the Fish’ continues to serve the best in town in our opinion. For less than €7, diners get a huge roasted potato split open and topped with one of seven sauces and then heaped with anything from salmon to sausage to beans or veggies; you will not walk away hungry. We love the gouda and bacon, the Hungarian sausage, the Mexican beef – hell we’d happily eat them all. The venue itself is cosy enough, has a warm brass bar, plenty of Danzig-era signs and paintings on the wall. Check out their cellar bar below called Jopengasse, which stocks a range of craft beers and is named after the name of this street in German, which itself was named after the most famous of the beers brewed by Johannes Hevelius when he wasn't looking up at the stars.