Basic Fish Broth

In most cases you’ll make the basic fish broth out of the bones and heads of the fish you buy for the soup, but in some situations—shellfish soups, for instance—you’ll have to buy fish heads and bones separately to make the broth. In Chinese markets good fresh fish heads are available at very little cost, but in some parts of the country you may need to buy inexpensive whole fish such as porgy or undersized bass to make the broth.

This is a simple, classic fish broth. When fish brot