IPPUDO IconSiam is a Japanese ramen chain on the sixth floor of IconSiam in Bangkok, on the same floor as the cinema. It serves tonkotsu ramen, and the basic Shiromaru has a rich but clean pork broth, with bean sprouts, garlic, and ginger available free on request. Staff guide customers through the menu and food details, and the restaurant was relatively quiet at 1 p.m. on a Sunday. Food takes about 15 to 20 minutes to arrive, which is not fast, and noodle firmness and broth richness are not asked about separately.