Turn the heat on and cover the pot with a
tight fitting lid.
When the water comes to a boil, turn it down
to a simmer for 10 minutes.
The mushrooms will give off their liquid and
literally make their own soup. For every 2 cups of liquid,
add 1 tsp. each of salt and sugar and 1 Tbsp. soy sauce. Add
4-5 scallions, sliced thinly, and 1/3 cup shoestring
potatoes.
The soup is finished when the potatoes are
cooked.