Thai-inspired Hot and Sour Soup with Banh Mi Spring Rolls
Monday, August 29th, 2011 by Mich Masoch
After a few weeks of carb and dairy heavy meals, not to mention a bit of vacation excess by your author, it felt like a good time to lighten up. Fortunately, we’ll be playing with a fusion of Szechuan and Thai with a touch of Vietnamese so, even without the extra calories, we’ll get plenty of bold flavors and satisfying richness. It’s kind of like having a culinary Asian All-Star team on your plate.
If you’ve cooked in these cuisines, you’ll already know how long and intimidating many recipes can look, though they’re actually quite simple. There are a goodly amount of raw ingredients to prep, more than we’re used to seeing in general. It’s really no big deal … a little prep earlier in the day and a little doing instead of pot-watching later … not so bad, right?
You’ll also see, in the lists, a few exotic ingredients you’re unlikely to find at the the regular old supermarket (unless you live in an overwhelmingly Asian neighborhood). Even if you can find them at the mega-mart, I heartily recommend searching out a specialty ethnic market in your area or, in the case of some non-perishables, buying online for better quality and selection at a better price. You’ll be surprised what a windfall for your food budget a little side-trip to a locally-owned ethnic market can be. As a bonus, you get to stock up on great pantry items to cook your favorite cuisines throughout the month, plus give back to your local economy.
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So, this week’s recipe …
I have what can only be called a deep and abiding love for Hot & Sour Soup. So, the idea of making a favorite so far off from what I’m used to felt a bit strange. H&S, as you probably know, is generally made with pork … often with chicken broth … not so appropriate for our Meatless dinner, so tinkering must be done to keep the soul of this satisfying soup and not feel like we’re missing those missing components. In the end, it seemed better to go further afield and tweak away over trying to remain too faithful. What resulted was a soup with the wonderful contrasts of the original plus a few more nuanced levels of flavor, lent by the Thai influence, between the sharp edges. It was definitely a food experiment I’ll be happy to make again, soon (and even happier to have leftovers to eat NOW).
To bring a deep meaty taste to the base broth, I decided on shiitake mushrooms, using both mushrooms in the stock as well as soaking water for additional mushrooms set aside for the finished soup. Rather than keep to Szechuan or even Chinese, ingredients, I looked to Thai cuisine, renowned for savory, full-bodied flavors without the use of meat. Instead of just ginger, garlic, and scallions as aromatics in the broth, I added galangal, lemon grass, cilantro, and shallot for more layered flavor balance. In the soup, fried chili garlic paste, lime, and tamarind provide savory heat, tart acidity, and umami counterpoints to the sharp acidic sweetness of the vinegars, soft twang of the rice wine, and clean heat of the white pepper. I kept the egg drop, since it’s so crucial to the mouth-happy feel of the soup and it’s great added protein, to boot.
To get some veg in, plus turn the tables on the cuisine fusion, I picked spring rolls as a fresh, crunchy foil to the thick, savory soup. In thinking about what tweaks might be tasty to the familiar Thai classic, I brought in a hint of Szechuan, as well as a touch of Vietnamese for good measure. Keeping the fresh, light feel of the original, I used a base of shredded veg, but replaced plain with a lightly marinaded/pickled version similar to that of a Vietnamese banh mi. I kept the fresh Thai basil in there because, well, it’s damned tasty, but added just a hint of mint, too. Then, I match-sticked some firm tofu and soaked it through the afternoon in a Szechuan-influenced marinade to use in both the spring rolls and soup.
Here’s how it goes …
Thai-inspired Hot and Sour Soup with Banh Mi Spring Rolls
serves 6-8 depending upon portion sizes
Pickled Veg (in the style of Vietnamese banh mi)
⅓ cup sugar
1 TBSP kosher salt
2 cups hot water
2/3 cup white distilled vinegar
½ cup rice vinegar
¼ cup scallion greens only – very thinly sliced
1 cup daikon radish – shredded
1 cup carrot – shredded
1.5 cups bean sprouts
2 cups cabbage – shredded* (note in pre-prep)
Marinaded Tofu Matchsticks
1 pkg firm tofu (19 oz)
reserved tofu packaging water
4 TBSP black vinegar
3 TBSP Chinese rice wine
1.5 TBSP soy sauce
1 TBSP sesame oil
½ tsp tamarind concentrate
½ cup scallion light and white only – very thinly sliced
Spring Rolls
spring roll wrappers
dipping water
fresh Thai basil
mint
cilantro
lime wedges
* note: If you want a nice dipping sauce, try mixing together equal parts soy sauce and black vinegar with a splash of rice vinegar and sesame oil. Keep a little fried chili garlic paste at the table for diners to add a dash with their chopsticks if desired.
Soup Base
12 dried shiitake mushrooms
3 cups hot water
1 large handful (about 1 cup) shredded dried woodear mushroom
1 cup hot water
6 cups water
(mushroom soaking water)
8 dried shiitake mushrooms
1 6-8” piece konbu seaweed – rinsed
2 pieces lemon grass – smashed and cut into pieces
3-4” piece of ginger – peeled and sliced no thicker than ¼”
6-8 ¼ – ⅓” slices galangal
½ cup cilantro stems (about 1 bunch) – cut into small pieces
4-6 cloves of garlic – peeled and smashed
2 small shallots – peeled and cut into small slices
¾ – 1 cup scallion white and light only – about 1 ½ bunches worth – cut into small pieces
1 TBSP soy sauce
*If we’d have had some available, I would also have added a handful of kaffir lime leaves, crumpled to release their oils.
Soup
Mushroom broth ( base above)
shiitake mushrooms – all – stems removed and cut in julienned strips
woodear mushrooms – if not pre-shredded, cut in julienned strips
6 oz oyster mushrooms – stem ends removed and cut into julienned strips
4 TBSP soy sauce
3 TBSP rice wine
2 TBSP sesame oil
2 tsp tamarind concentrate
1 tsp fried chili garlic paste
1 tsp sugar
⅛ tsp ground white pepper
½ cup water chestnuts – minced
½ cup scallion greens only – thinly sliced
2 handfuls (as desired) bean sprouts
⅓ cup black vinegar
¼ cup rice vinegar
juice of 1 lime
3 TBSP corn starch
3 TBSP water
2 eggs – beaten well
*If I’d have made it to the further-out Chinese market, I’d have also added dried, reconstituted and julienned lily buds.
Pre-prep: (aprox 4-6 hours – or more – ahead) Marinate vegetables and tofu
- In a large storage container or bowl, measure in sugar and salt then pour hot water over, stirring well until dissolved. Add vinegar and stir. As you prepare each vegetable, place them straight into the pickling mixture until all vegetables are done. Mix well and push gently over the top layer to help the vegetables submerge better. If possible, check once or twice during the 4 (or more) hour soak, mixing well and pushing down again.
*note: Like shredded cabbage in fish tacos, the cabbage in pickled veg doesn’t have enough time for the thicker spine bits to soften. Because of this, I’ll plan a different meal after these which calls for cooked cabbage. This way, I can cut off just the nicer-to-munch-raw tops of the leaves without wasting the other bits.
- Remove tofu pieces from the original container, saving the storage liquid. Slice the tofu, then slice further into small matchstick pieces and set aside. Add all marinade ingredients to the water in the original container and mix well. Place the tofu in a plastic bag and pour the marinade over, then squeeze out the air and store in the fridge. Like the veg, if possible, check on it during the process and flip the bag over.
Step 1: Soup Base
- In a large bowl, pour 3 cups hot water over 12 dried shiitake mushrooms. In another bowl, pour 1 cup of hot water over the woodear mushrooms (black fungus). Let them soak for about a half hour, then squeeze out excess water back into the bowl and set them aside for later.
- In a soup pot, heat all soup base ingredients on HIGH just until the pot comes to a boil. Then, remove from heat and let steep for 15 minutes. Remove konbu and return to a boil, then reduce to SIMMER for 1 hour. (This is an excellent time to slice mushrooms and prep herbs and ingredients for spring rolls … just sayin’ … You’ll also definitely want to put your pickled vegetables in a strainer over a bowl at least an hour before you intend to eat. Drippy veg + spring roll wrappers = big fucking mess.)
- Set shiitakes aside until cool enough to handle and strain the broth. Squeeze out any excess moisture in the mushrooms back into the pot.
Step 2: It’s SOUP!
- In the soup pot, return the base broth and add all the ingredients before the vinegar. Once the
bean sprouts are cooked as you like, add the vinegars and lime juice and stir.
- In a small bowl or cup, mix the corn starch and water very well, until perfectly smooth, and slowly pour in and stir until the soup is thickened.
- Slowly drizzle in the beaten eggs in small threads at the surface of the soup. (If you need to do several rounds to keep big glops of egg from forming, that’s swell!) Give it a moment or two to start to cook, then stir around to make egg threads. Repeat until egg is all incorporated.
Step 3: Serve!
- This is where your clever decision to prep the spring rolls while the base cooked pays off. The grooviest thing about spring rolls is that everyone can make theirs however they like. So just set out nifty ready to stuff ingredients with your wrappers and a water bowl to dunk them in. Then you can ladle out your soup and dig in!



















