Rayu Soba Kuudo is a chilled soba shop in Osaka, a three-minute walk from Tenjinbashisuji 6-chome Station and five minutes from Naniwa no Yu onsen. The standard order is thick cold soba dipped in tsuyu and eaten with raw egg and rayu. Raw eggs sit on the tables, so diners crack and mix them as they like and adjust the heat with rayu. Staff speak English and explain the order in which to eat the soba.