Mandarin Hot Soup

Mandarin Hot and Sour Soup

Mandarin hot soup is the Chinese restaurant classic better known as hot and sour soup. This northern-style version gets its signature complexity from dried black mushrooms, chewy wood ear mushrooms, bamboo shoots, shredded pork, and ham, all floating in a soup stock sharpened with vinegar and white pepper. A drizzle of beaten egg at the end creates silky ribbons that float throughout the bowl.

White pepper is the defining spice, not black. Its slightly musky heat is what makes hot and sour soup taste right; black pepper would throw off the whole profile. Most Chinese grocery stores carry white pepper in the spice aisle; it’s worth tracking down for this dish.

The vinegar-to-pepper ratio is deeply personal. Four tablespoons of vinegar here delivers a bright tang without overwhelming the other flavors. If you want it sharper, add more. Chinkiang black vinegar is traditional and gives the most authentic flavor; rice vinegar works in a pinch.

Drizzling the beaten egg slowly in a thin stream while stirring is the technique for beautiful egg ribbons rather than clumps. Keep the heat off and the spoon moving in one direction; the ribbons will form themselves.

Thickening with cornstarch at the end gives the soup its characteristic body. Without it, the broth tastes thin and unfinished.

Chef Tips

• Soak dried black mushrooms and wood ears in hot water for 20 minutes before using; they need rehydrating to become tender.
• Shred the pork against the grain in very thin strips; thick shreds stay chewy.
• Mix the cornstarch with cold water into a smooth slurry before adding; dumped dry, it lumps instantly.
• Finish with a drizzle of sesame oil and a scatter of chopped green onion at serving for classic garnish.

Variations

• Add cubed silken tofu in the last minute for extra protein and traditional texture.
• Stir in a pinch of chili oil or a teaspoon of sambal for a spicier version.
• Substitute shrimp or chicken for pork; both work well.