01 -wan- Tantan Ramen Hanoi is a bar-style ramen shop in Hanoi's Old Quarter that serves tantan ramen and brothless ramen. The rich tantan ramen uses a peanut sauce base, and customers choose noodle doneness, saltiness, spice level, and food temperature when ordering. Orders are placed by opening the menu through a QR code and turning on the Korean translation, and food comes out quickly. There are bar tables suited to eating alone.