Add 1/2 cup of water to a pot and turn on medium heat. Add 4 tbsp of mentsuyu (Japanese noodle soup base).
Add about 1 1/2 cups of leftover curry, and stir until all blends smoothly.
Drop a block of frozen udon noodles into a pot of boiling water. Wait 1 minute, and then gently separate the noodles. Once udon noodles are fully separated, boil for another 1 minute.
Drain the udon and then add to the boiling curry soup immediately. Mix thoroughly. It's ready! We hope you enjoy your "TOKYO FLAVORS, NEW YORK STYLE" meal! Itadakimasu!