Onion soup from Hibachi/Benihana?

I went to Hibachi Japan, and really liked the onion soup they have.



Does anyone know how to make it?Onion soup from Hibachi/Benihana?
Benihanas Onion Soup



Ingredients





Stock:

1 chicken bone 1 beef bone

1 onion diced finely 1/2 carrot sliced

1/4 stalk celery 1/4 piece of garlic smashed

2 quarts water



Soup ingredients:

1 medium onion cut into thin slivers sesame or vegetabel oil

1 pkg. mushrooms thinly sliced chopped green onions



Procedure







Stock directions

Boil all of the ingredients together for 45 minutes. Strain through a cheesecloth or soft napkin. Use only the broth.



Soup directions:

Slowly cook the onion in oil until it is slightly brown and crispy. Drain and pat with paper towels to absorb excess grease.

Add onions, mushrooms, green onions to broth.