Mark Bittman's Mushroom Stock

Step 1

Toss a pound of trimmed button mushrooms and a few dried porcini into 6 cups water. It need not be more complicated than this, but adding some onion, carrot or celery makes it even better.

Step 2

Bring to a boil, and simmer.

Step 3

Strain the mushrooms out if you like, but make sure to use them for something.