Sorry about not posting the recipe earlier; I was still under the influence of the cold. This recipe has been "adapted" from one found in The Frugal Gourmet Cooks Three Ancient Cuisines by Jeff Smith. Public television dropped his show like a very hot rock when someone accused him of doing very naughty things. Never heard what happened after that, but his career on TV was over in a flash. I have found his recipe to be a bit too thick like gravy, so I increased the liquid quantities. Also ordinary grocery store mushrooms were used rather than the fancy dried ones, and I added carrots, turnips, and onions to the recipe.
Ingredients:
6 quarts chicken stock or water with the appropriate amount of chicken stock concentrate
3-4 tablespoons soy sauce
1/2 to 1 pound lean pork cut into julianne
(Not too long, it is a royal pain when they don't fit on the spoon!)
2 large carrots, cut into short julianne
1-3 shogoin turnips (if you can find them) cut into short julianne
2 or 3 strong yellow onions, diced very small
12-16 oz. mushrooms, washed, cut in half and sliced thin
Bamboo shoots, cut in julianne (optional)
3/4 -1 tsp. white pepper, freshly ground
1/3 cup rice wine vinegar
(Or if you want this recipe to have two kinds of hotness,
use the vinegar from a jar of pickled jalapenos.)
5-6 tablespoons corn starch mixed with an equal amount of water
1 cake of firm or extra firm tofu, cut in 3/4" cubes
3 or 4 eggs, beaten
Additional salt and some black pepper to taste (optional)
Kimchi pepper flakes (optional garnish)
In a 2 gallon stock pot bring the stock to a boil, add the soy sauce, the carrots, turnips, and onions. Cook on a high simmer for 5 minutes. Add the pork, and cook for 5-10 minutes more. Add the mushrooms (and bamboo shoots) and when the soup has returned to a high simmer, add the white pepper, vinegar, and corn starch mixture. Stir until thickened. Add the tofu. When the soup has returned to a high simmer, pour in the beaten egg in a thin stream over the surface area of the pot. and let it sit for 30 seconds or so before stirring. Taste, adjust seasonings if necessary and serve. It refrigerates well; on the second day, more vinegar and pepper may need to be added as their flavors will have been absorbed by the ingredients. This soup cannot be frozen because the corn starch will cause the soup to separate when thawed, so only make enough to eat within 2 or 3 days. Enjoy.