Cut the stems off the shiitake mushrooms and separate the caps and stems. Slice the caps into quarters and shred the stems.

Crack the egg into a bowl, add powdered cheese, and mix well to create the egg mixture.

Add the seasonings (consomme, salt, and water) to a pot and heat over medium heat until boiling. Add the shiitake mushrooms and simmer on low heat for 2 minutes.

Increase to medium heat and slowly pour the egg mixture into the pot. Once the egg sets, turn off the heat.