Hot and Sour Soup

If you have ever eaten at a Chinese restaurant, you may have come across Hot and Sour soup. This soup warms you on a chilly day and makes a perfect appetizer for a Chinese feast. Hot and Sour Soup is a soup known for its distinctive peppery heat.

In China, no two versions of hot and sour soup are the same. There are many different ways to make this soup; some are vegetarian, and others use meat. Traditional versions often use bamboo shoots, shiitake mushrooms, or wood ear mushrooms.

What Does Hot and Sour Soup Taste Like?

Hot and Sour Soup has a savory, tangy, and slightly spicy flavor. Vinegar gives the broth its acidity, while white pepper adds a warm, lingering heat. The soup should balance the hot and sour flavors rather than letting one overpower the other. Soy sauce adds savory depth, mushrooms add earthy umami, and sesame oil gives the finished soup a subtle nuttiness. Adjust the balance to taste. If you prefer a more sour soup, add a little extra vinegar. For more heat, increase the amount of white pepper.

Where Did Hot and Sour Soup Come From?

The exact origin of Hot and Sour soup remains unclear; however, it is commonly believed to have originated from the Sichuan and Hunan regions. The soup is thought to have developed through the combination of various spices and different types of vinegar. The earliest versions of Hot and Sour soup utilized seasonal ingredients and vegetables that reflected agricultural practices.

Ingredients

Tofu, White Mushrooms, Green onion, Ginger, Eggs, White pepper, Chicken stock cube, Water, Rice vinegar, Dark soy sauce, Sesame seed oil, Flour.

Use medium-firm tofu for this Hot and Sour Soup. It has the right structure to hold its shape while cooking but stays soft enough to absorb the broth’s flavor. You can also use soft tofu, although it will be more delicate and may break apart more easily.

White mushrooms provide an earthy flavor and are easy to find. You can also use shiitake mushrooms, wood ear mushrooms, enoki mushrooms, or a combination of different mushrooms. Wood ear mushrooms are particularly common in traditional-style Hot and Sour Soup and provide a pleasantly chewy texture that contrasts with the soft tofu and egg.

Green onions add freshness and a mild onion flavor. Add them toward the end of cooking or use them as a garnish so their fresh flavor stays noticeable.

Fresh ginger adds warmth and aromatic depth to the broth and complements the vinegar and white pepper. Whisked eggs create delicate egg ribbons throughout the soup. Eggs also add protein and give the broth a silky texture.

White pepper is an important ingredient in Hot and Sour Soup because it provides the dish’s characteristic peppery heat. Unlike chili, white pepper gives the soup a warm, pungent heat without adding a strong chili flavor. Adjust the quantity based on how spicy you like your soup.

Chicken stock or a chicken stock cube provides a savory base. For a vegetarian Hot and Sour Soup, use vegetable stock instead.

Rice vinegar gives the soup its clean, bright sourness. It works particularly well in this simple homemade version. Traditional-style recipes may use Chinese black vinegar, also known as Chinkiang vinegar, which has a deeper, more complex, slightly malty flavor. You can use black vinegar if you want a richer, more distinctive sour flavor.

Dark soy sauce adds color, saltiness, and a slightly sweet, deep savory flavor to the broth. Sesame oil is primarily used for aroma. A small amount gives the soup a nutty fragrance without overpowering the other ingredients.

Flour thickens the soup in this recipe. If you prefer the smoother, silky texture commonly associated with Chinese restaurant-style Hot and Sour Soup, you can also use cornflour/cornstarch to make a slurry before adding it to the broth.

Instructions

Clean and quarter the mushrooms, slice the tofu, and prepare green onions for garnish. In a pot, combine water, a chicken stock cube, rice vinegar, and dark soy sauce, simmering for four minutes.

Add the mushrooms and tofu, cooking for 7-8 minutes over medium-low heat. Mix two ladles of soup base with one tablespoon of flour until dissolved, then whisk the eggs separately.

Lower the heat and add the roux to thicken the soup. Drizzle the eggs into the soup using a slotted spoon or by slowly pouring and breaking them with a fork or chopsticks. Once the eggs are set, sprinkle with green onions and serve hot. Enjoy this hearty hot and sour soup, perfect for hot weather with its tangy and spicy flavors!

What to Serve Hot and Sour Soup with?

Steamed Jasmine rice is fragrant and subtly sweet, which perfectly balances the hot and sour flavour of the soup. Fried dumplings filled with vegetables are great sides for this hearty, warm soup, adding extra flavour and texture to the dish. Fried rice made with vegetables or shrimp is another great option to enjoy with hot and sour soup, as the fried rice will elevate the dish’s umami flavour. Explore more Chinese recipes such as Mapo Tofu, Dumpling Soup, Bok Choy Soup, Kung Pao Chicken, Chinese beef stir-fry.

How to Store and Reheat Hot and Sour Soup?

To store soup in the fridge, let it cool to room temperature first. You can keep it in the pot or transfer it to an airtight container. It lasts up to three to four days. Avoid freezing hot and sour soup, as it affects flavor and texture. To reheat, use the stovetop for the whole pot or microwave for a single portion. If reheating the whole pot, allow it to cool before refrigerating again.

What Vinegar Is Best for Hot and Sour Soup?

Rice vinegar and Chinese black vinegar both work in Hot and Sour Soup, but they produce slightly different results. Rice vinegar has a lighter, cleaner acidity and works well for a simple homemade soup.

Chinese black vinegar has a dark color and a deeper, more complex flavor. If you do not have Chinese black vinegar, rice vinegar is a suitable alternative.

What Makes Hot and Sour Soup Hot and Sour?

The sour flavor primarily comes from vinegar, while the hot or spicy element traditionally comes largely from white pepper. The balance between these ingredients gives Hot and Sour Soup its distinctive flavor.

Too much vinegar can make the soup sharply acidic, while too much white pepper can overwhelm the delicate broth. Adjust the seasoning toward the end of cooking.

How to Make Egg Ribbons in Hot and Sour Soup

Egg ribbons give the Hot & Sour Soup its signature appearance. For best results, lower the heat so the broth simmers gently. Drizzle the whisked egg into the soup while gently stirring in one direction only. Avoid adding all the egg at once; this can create large pieces of scrambled egg instead of thin ribbons.

Vegetarian Hot and Sour Soup

Hot and Sour Soup is easy to adapt for vegetarians. Replace the chicken stock with vegetable stock and use tofu and mushrooms as the main ingredients.

For a vegan Hot and Sour Soup, omit the egg and check that the stock and other ingredients you use are suitable for a vegan diet. To make the soup more substantial, add bamboo shoots, shiitake mushrooms, wood ear mushrooms, or extra tofu.

Hot and Sour Soup: Beef, Chicken and Mushroom Variations

You can change up the recipe for Hot and Sour Soup with different ingredients. Add sliced cooked chicken for a more substantial soup. You can also add thinly sliced beef for a richer, more protein-rich version. Add shrimp or prawns toward the end of cooking to keep them tender. Use a combination of shiitake, wood ear, enoki, and white mushrooms for a more complex mushroom flavor and varied texture.

Hot and Sour Soup with Bamboo Shoots

Bamboo shoots are another common ingredient in Hot and Sour Soup. Their crisp texture contrasts nicely with the soft tofu and silky egg. If you cannot find bamboo shoots, you can still make the soup without them.

How to Balance Hot and Sour Soup

You can adjust the flavor of Hot and Sour Soup after cooking. If the soup is too sour, add water. If it’s not sour enough, add more vinegar. Add white pepper for more heat. Reduce saltiness with more water. For a nuttier taste, drizzle in more sesame seed oil. Add vinegar gradually because its flavor becomes more noticeable as the soup sits.

Hot and Sour Soup FAQs

Is Hot and Sour Soup spicy?

Hot and Sour Soup is usually peppery and spicy, but the heat level depends on the recipe. White pepper often provides much of the characteristic heat. You can increase or decrease the amount according to your preference.

What makes Hot and Sour Soup sour?

Vinegar provides the characteristic sour flavor. Rice vinegar gives a lighter acidity, while Chinese black vinegar provides a deeper and more complex flavor.

What makes Hot and Sour Soup spicy?

White pepper is traditionally an important source of heat. Some recipes also use chili or chili oil for extra spice.

Can I use rice vinegar instead of black vinegar?

Yes. Rice vinegar works well in homemade Hot and Sour Soup and has a lighter flavor. Chinese black vinegar gives the soup a deeper and more complex taste.

What mushrooms are best for Hot and Sour Soup?

Shiitake and wood ear mushrooms are excellent choices. You can also use white mushrooms, enoki, and other mushrooms.

Can I use soft tofu?

Yes. Soft tofu creates a more delicate texture, but medium-firm or firm tofu is easier to handle and less likely to break apart during cooking.

How do I thicken Hot and Sour Soup?

Cornflour/cornstarch is commonly used to thicken Hot and Sour Soup. Mix it with cold water or cool broth before adding it to the hot soup to prevent lumps. You can also use flour, as in this recipe.

Why is my Hot and Sour Soup watery?

The soup may need additional thickening. Mix a small amount of cornflour with cold water and gradually add it to the simmering broth while stirring.

Can I make Hot and Sour Soup vegetarian?

Yes. Replace chicken stock with vegetable stock and use tofu, mushrooms and vegetables. For a vegan version, omit the egg and check that all stock and sauces are vegan-friendly.