This could be one of the longest-standing and most secretive fish-ball noodle shops around. Jeng Jung is tucked deep in a narrow walkway opposite Bangkok Bank Ban Mor branch. This place has been around since the war times, and now it is being perpetuated by the second generation. Highlights include their shrimp wontons and selections of fish-balls. Big bowl, good value. Go early, for it now is getting more and more popular thanks to social media.