What will you need? 

Chicken broth –1½ liters (60 oz.) 
Dry sherry – 1/3 cup 
Soy sauce – 4½ teaspoons 
Lemon – 1 (sliced) 
Fresh mushrooms – 6 (sliced) 
Onions – 2 (chopped) 
Carrot – 1 (chopped) 

How to make it?

Boil the broth and bring it to a simmer. 
Then add the sherry and soy sauce (Related article:  soy substitute) and simmer for 3 more minutes. 
Garnish soup with chopped onions, mushrooms and carrot. Serve with slices of lemon. 

How to serve?

The Japanese like their soup really hot served either before the main course or even as a side dish during the main course. It is a good idea to pour the soup in a large bowl. The Japanese do not mind drinking directly from their bowl but you can follow the tradition in your culture. 

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