extreme flavors

1 pound mild fish bones
1 quart water
1 bunch fresh parsley stems
1 medium onion, thinly sliced

Combine all ingredients in a large saucepan. Bring to a boil; cover, reduce heat, and simmer 2 hours.

Pour mixture through a wire mesh strainer, discarding bones, parsley and onion.

Yields 2 1/2 cups.