Gukrak Udon TKU is an udon shop a one-minute walk from the east exit of JR Tamatsukuri Station in Osaka and twelve minutes south of Osaka Castle Park. It serves Gukrak curry udon, soup udon, and fried chicken with thick, chewy noodles. Customers write their name in front of the shop and wait until staff call them, and payment is cash only. The space is small, so seating is close to the next person.