Begin with start boiling water(not listed above) for cooking udon

For kitsune
Boil 1 cup of water, put aburaage, boil 10 seconds each side, and drain.

Put all the other kitsune ingredients in the same pan, cook aburaage in lower heat, until there is almost all the liquid is gone.

(Soup)
Boil 300 water, put rest of the soup ingredients, use 1/4 tsp salt first, and gradually add more if needed