Hot and Sour Soup

Hot and Sour Soup is a warming, flavorful soup with a satisfying balance of tangy vinegar, gentle chili heat, savory broth, mushrooms, tofu, bamboo shoots, and delicate ribbons of egg. A touch of sesame oil and fresh green onions finishes the soup with an aromatic flavor that makes every bowl comforting and satisfying.

This homemade version is straightforward enough for a weeknight meal and can be adjusted easily to suit your taste. Add a little more rice vinegar when you want extra tang, increase the chili-garlic sauce for additional heat, or keep the seasonings mild for a gentler bowl.

Ingredients

• 6 cups chicken or vegetable broth
• 1 cup shiitake or button mushrooms, thinly sliced
• 1 cup firm tofu, cut into small cubes
• ½ cup bamboo shoots, cut into thin strips
• 3 tablespoons soy sauce
• 3 tablespoons rice vinegar, plus more to taste
• 1 tablespoon chili-garlic sauce
• 1 teaspoon freshly grated ginger
• ¼ teaspoon ground white pepper
• 3 tablespoons cornstarch
• ¼ cup cold water
• 2 large eggs, lightly beaten
• 1 teaspoon toasted sesame oil
• 3 green onions, finely sliced
• Fresh cilantro, for serving
• Chili flakes, for serving

Instructions

1. Build the broth.
   Pour the chicken or vegetable broth into a large saucepan or soup pot. Add the sliced mushrooms, tofu, bamboo shoots, soy sauce, rice vinegar, chili-garlic sauce, grated ginger, and white pepper. Stir gently to combine.
2. Simmer the soup.
   Bring the broth to a gentle boil over medium-high heat. Reduce the heat and simmer for 8–10 minutes, allowing the mushrooms to become tender and the flavors to blend.
3. Prepare the cornstarch slurry.
   In a small bowl, whisk the cornstarch with ¼ cup cold water until completely smooth. Make sure no dry cornstarch remains at the bottom.
4. Thicken the broth.
   Slowly pour the cornstarch mixture into the simmering soup while stirring gently. Continue simmering for 2–3 minutes, or until the broth develops a lightly thickened consistency.
5. Create the egg ribbons.
   Reduce the soup to a gentle simmer. Slowly drizzle the beaten eggs into the pot in a thin stream while gently stirring the broth in one direction. Allow the eggs to set into delicate ribbons.
6. Add the finishing flavors.
   Stir in the toasted sesame oil and sliced green onions. Cook for another minute, then remove the pot from the heat.
7. Taste and adjust.
   Taste the broth before serving. Add a small splash of additional rice vinegar for more sourness or a little extra chili-garlic sauce if you prefer more heat.
8. Serve.
   Ladle the soup into warm bowls and finish with fresh cilantro, additional green onions, or chili flakes as desired. Serve immediately.

Getting the Hot and Sour Balance Right

The defining character of this soup comes from balancing sour, spicy, salty, and savory flavors. Rice vinegar supplies the tangy element, while chili-garlic sauce and white pepper provide warmth. Soy sauce adds savory depth without requiring a long cooking time.

Because different brands of broth and soy sauce contain different amounts of salt, it is best to taste the soup near the end of cooking. Adjust the vinegar and heat only after the other flavors have had time to develop.

How to Get the Right Consistency

Hot and Sour Soup should have a broth that is lightly thickened rather than extremely heavy. Cornstarch provides that familiar silky consistency. Always combine the cornstarch with cold water before adding it to the soup so it disperses evenly.

The broth will continue to thicken slightly as it cooks, so allow it to simmer briefly before deciding whether it needs any adjustment.

How to Make Beautiful Egg Ribbons

For thin ribbons rather than large pieces of scrambled egg, make sure the soup is gently simmering instead of rapidly boiling. Pour the beaten eggs slowly into the broth while stirring gently in one direction.

Avoid vigorous stirring immediately after adding the eggs. Giving them a few moments to set helps create longer, more distinct ribbons throughout the soup.

Choosing the Mushrooms

Shiitake mushrooms provide a deeper, more pronounced savory flavor, while button mushrooms offer a milder option that is easy to find. Either variety works well in this recipe. Slice the mushrooms relatively thin so they become tender during the short simmering time.

Recipe Tips

Use firm tofu rather than soft or silken tofu if you want cubes that hold their shape while the soup cooks. Stir gently after adding the tofu to avoid breaking it into smaller pieces.

Add the toasted sesame oil near the end rather than at the beginning. Its aroma is more noticeable when it is not subjected to prolonged cooking.

Easy Variations

The recipe can be customized with additional mushrooms, extra bamboo shoots, or more tofu for a heartier bowl. If you prefer a vegetarian version, use vegetable broth and check that the remaining sauces and seasonings meet your dietary preferences.

For a spicier soup, increase the chili-garlic sauce gradually. For stronger tang, add extra rice vinegar one teaspoon at a time until the broth reaches the flavor you prefer.

What to Serve with Hot and Sour Soup

Hot and Sour Soup works well as a starter or as part of a larger meal. Serve it alongside steamed rice, vegetable stir-fry, noodles, dumplings, or your favorite Asian-inspired main dish.

For a lighter meal, a generous bowl can also be served on its own with additional mushrooms, tofu, and green onions.

Storage and Reheating

Allow leftover soup to cool before transferring it to an airtight container. Refrigerate for up to 3–4 days.

Reheat gently in a saucepan over medium-low heat, stirring occasionally. The cornstarch may cause the soup to become slightly thicker after refrigeration. If needed, add a small splash of broth or water while reheating.

Frequently Asked Questions

Can I make Hot and Sour Soup ahead of time?

Yes. The soup can be prepared ahead and refrigerated. For the freshest texture, you can also prepare the broth and add the egg ribbons shortly before serving.

Can I make the soup less spicy?

Yes. Reduce the chili-garlic sauce and white pepper according to your preference. Additional heat can always be added individually when serving.

How can I make it more sour?

Add additional rice vinegar after the soup has finished cooking. Start with a teaspoon, taste, and continue adjusting gradually.

Why isn’t my soup thickening?

Make sure the cornstarch is completely dissolved in cold water before adding it. The soup should also return to a gentle simmer after the slurry is added so the cornstarch can properly thicken the broth.

Can I use vegetable broth instead of chicken broth?

Yes. Vegetable broth works well and provides an easy meat-free base for the soup.

Recipe Details

Conclusion

Hot and Sour Soup brings together mushrooms, tofu, bamboo shoots, egg ribbons, ginger, vinegar, and gentle chili heat in a silky savory broth. The recipe is quick enough for an everyday meal and easy to customize, especially when adjusting the sourness and spice. Serve it steaming hot with fresh green onions, cilantro, and a sprinkle of chili flakes for a flavorful finish.