Hot and Sour Konjac (酸辣魔芋 / Suān Là Mó Yù)

Name: Hot and Sour Konjac (酸辣魔芋 / Suān Là Mó Yù)
Prep time: 10 min
Cook time: 8 min
Total time: 18 min
Yield: 3 servings
Cuisine: Hunan
Ingredients: 400 g konjac jelly strips, rinsed and drained; 6 pickled red chilies (泡椒), sliced; 4 garlic cloves, minced; 1 tbsp ginger, finely chopped; 2 scallions, cut into sections; 2 tbsp black vinegar (Chinkiang vinegar); 1 tbsp light soy sauce; 1 tsp sugar; 1/2 tsp salt; 1 tsp sesame oil; 2 tbsp cooking oil; 1 tsp Sichuan peppercorn oil (optional)

Hot and sour konjac (酸辣魔芋, suān là mó yù) is a beloved Hunan side dish that turns a humble, near-zero-calorie ingredient into something genuinely exciting. Konjac jelly strips are springy and slippery, with a texture somewhere between noodles and glass skin. They are stir-fried quickly with pickled red chilies, garlic, and a generous splash of black vinegar, so every strand is coated in a glossy, tangy, gently spicy sauce. The dish is light yet punchy — the kind of refreshing plate that cuts through a heavy spread of braised meats and makes the whole meal feel balanced. It is fast, cheap, vegetarian-friendly, and surprisingly addictive once you acquire the taste for konjac's unique bounce.

Konjac — the mountain root of southwest China

Konjac (魔芋, mó yù) comes from the corm of a plant grown in the mountainous regions of Hunan, Sichuan, and Guizhou. The raw corm is toxic, so it is processed into a safe, gelatinous cake that is then sliced or extruded into strips. For centuries it was a poor-man's filler food in Hunan villages, prized because it was cheap, filling, and kept well. Today it is celebrated as a low-calorie, high-fiber ingredient. Hunan cooks love it because its neutral flavor soaks up bold seasonings beautifully, and its firm, bouncy texture holds up to fierce stir-frying without falling apart. The hot-and-sour treatment is the classic preparation — the vinegar brightens the konjac, while the pickled chilies give it the unmistakable Hunan kick.

Ingredients

Konjac strips are sold vacuum-packed in Asian markets, often labeled 'konjac noodles' or 'shirataki'. Rinse them well to remove the briny smell before cooking.

400 g konjac jelly strips, rinsed and drained
6 pickled red chilies (泡椒), sliced
4 garlic cloves, minced
1 tbsp ginger, finely chopped
2 scallions, cut into sections
2 tbsp black vinegar (Chinkiang vinegar)
1 tbsp light soy sauce
1 tsp sugar
1/2 tsp salt
1 tsp sesame oil
2 tbsp cooking oil
1 tsp Sichuan peppercorn oil (optional)

Step-by-Step Instructions

Prep and blanch the konjac. Open the konjac package and drain the liquid. Rinse the strips under cold water for 30 seconds to remove the earthy, briny smell. Bring a pot of water to a boil and blanch the konjac for 2 minutes — this step is important because it firms up the texture and removes any lingering odor. Drain well and pat dry with a towel. If the strips are very long, cut them into 8 cm lengths so they are easy to stir-fry and eat. Dry konjac sears better and absorbs more flavor.
Build the aromatic base. Heat a wok over medium heat and add 2 tablespoons of cooking oil. Add the minced garlic, chopped ginger, and sliced pickled chilies. Stir-fry for 20 to 30 seconds until the aromatics are fragrant and the chili oil begins to tint the oil red. Keep the heat moderate — garlic burns easily and turns bitter. The pickled chilies should soften slightly and release their tangy, fermented aroma into the oil.
Stir-fry the konjac. Turn the heat up to high and add the blanched konjac strips. Toss vigorously for 2 minutes so every strand is coated in the chili oil. The konjac will not brown, but it should look glossy and take on a reddish tint from the chilies. High heat helps the konjac absorb the flavors quickly and gives the dish the lively 'wok hei' character that defines Hunan stir-fries.
Season with vinegar and soy. Pour the black vinegar around the edge of the wok so it sizzles and evaporates instantly, concentrating its aroma. Add the light soy sauce, sugar, and salt. Toss well for another minute. The sugar is essential — it rounds off the sharpness of the vinegar and balances the heat of the chilies. Taste a strand and adjust: it should be tangy first, then spicy, then savory, with a faint sweetness underneath.
Finish and serve. Drizzle in the sesame oil and Sichuan peppercorn oil if using. Add the scallion sections and give everything one final toss. Turn off the heat immediately — overcooking makes the scallions limp. Serve hot as a side dish alongside steamed rice and a braised main. The konjac is best eaten fresh, while the sauce is still glossy and the texture springy. It also tastes great cold the next day, when the flavors have melded.

Secrets to perfect hot and sour konjac

Always blanch the konjac first. It removes the packaging smell and firms up the bouncy texture.
Add the vinegar last and around the wok edge. Direct heat dulls vinegar — the sizzle preserves its bright tang.
Use pickled chilies (泡椒), not fresh. Their fermented sweetness is what makes the dish taste authentic.
Keep it quick. Konjac needs only a few minutes — long cooking makes it rubbery.

Variations

Like most Hunan home cooking, this dish welcomes small adjustments to suit your taste and pantry.

With pork

Add 80 g of minced pork after the aromatics and brown it before adding the konjac. The pork fat enriches the dish and turns it from a side into a light main.

With wood ear mushrooms

Toss in a handful of blanched wood ear mushrooms for extra crunch and a more substantial, texturally interesting plate.

Nutrition

Estimated values per serving (recipe serves 3). Konjac is extremely low in calories and rich in glucomannan fiber, making this a very light dish.

Nutrient	Per serving
Calories	85 kcal
Protein	2 g
Total fat	5 g
Saturated fat	1 g
Carbohydrates	9 g
Sodium	460 mg
Sugar	3 g

Values are estimates. Actual nutrition will vary depending on specific ingredients and portion sizes.

Frequently Asked Questions

What does konjac taste like?

On its own, konjac is almost flavorless — slightly earthy and briny from its packing liquid. Its real appeal is texture: firm, smooth, and springy, like a bouncy noodle. Because it is so neutral, it absorbs whatever seasonings you cook it with. In this dish it soaks up the hot-and-sour sauce and becomes tangy, spicy, and savory. If you have never tried it, expect something closer to chewy glass noodles or firm jelly than any vegetable you know. Most people who dislike it the first time change their minds once it is properly seasoned.

Is konjac really that low in calories?

Yes — pure konjac is roughly 97% water and 3% glucomannan fiber, with only about 5 to 10 calories per 100 grams. That is why it is popular in weight-loss cooking. However, the calories in this dish come mostly from the cooking oil and the small amount of sugar. To keep it very light, reduce the oil to 1 tablespoon. Note that konjac's fiber is very filling, so a small portion goes a long way — eat it slowly and drink water, as the fiber expands in your stomach.

Can I use shirataki noodles instead?

Shirataki noodles are made from the same konjac plant, so yes — they work perfectly. The texture is a bit softer and more noodle-like than firm konjac strips, but the flavor result is the same. Rinse and blanch them exactly as described. You can also use konjac blocks sold for hot pot; just cut them into thin strips yourself. Avoid 'konjac rice' for this recipe, as the small grains will not stir-fry well.

How spicy is this dish?

It is moderately spicy — the heat comes from pickled chilies, which are gentler and more tangy than dried chilies. If you want it milder, use 3 pickled chilies and remove their seeds. For more heat, add a teaspoon of chopped fresh red chilies or a pinch of dried chili flakes with the aromatics. The vinegar is the dominant flavor, so even at full chili strength the dish reads as sour-and-spicy rather than purely fiery.

Related Recipes

If you enjoyed this dish, try these other Hunan favorites next.

Hot and Sour Konjac (酸辣魔芋)