There's nothing quite like homemade Vietnamese Crab Asparagus Soup / Súp Cua. While restaurant versions are satisfying, making it at home lets you control the ingredients, adjust the flavors to your preference, and enjoy it fresh whenever the craving hits.

Súp cua is a delicate, silky soup where the sweetness of fresh crab meets the grassy notes of asparagus in a light, savory broth. The egg-drop ribbons add a velvety texture, while white pepper provides a gentle warmth that doesn't overpower the seafood. It's comfort food that feels elegant — the kind of soup you'd find at a Vietnamese wedding banquet or a family Sunday dinner.

Ingredients

  • 6 cups chicken broth (low-sodium)
  • 1 can (15 oz) white asparagus, drained and cut into 1-inch pieces (or 1 bunch fresh asparagus, trimmed and cut)
  • 8 oz crab meat (fresh, frozen, or canned, picked over for shells)
  • 2 large eggs, beaten
  • 2 tablespoons cornstarch mixed with 3 tablespoons water (slurry)
  • 1 tablespoon fish sauce
  • 1/2 teaspoon white pepper
  • 1/2 teaspoon salt (or to taste)
  • 1 tablespoon vegetable oil
  • 2 cloves garlic, minced
  • 1 shallot, thinly sliced
  • 2 green onions, thinly sliced (for garnish)
  • 1/4 cup fresh cilantro, chopped (for garnish)
  • Optional: 1/2 cup cooked crab roe or coral for color

Instructions

1

Heat vegetable oil in a large pot over medium heat. Add garlic and shallot, sauté until fragrant (about 1 minute).

2

Pour in chicken broth and bring to a boil. Reduce heat to a gentle simmer.

3

Add the white asparagus pieces and cook for 3-4 minutes until tender.

4

Gently fold in the crab meat, being careful not to break it up too much. Simmer for 2 minutes.

5

Season with fish sauce, white pepper, and salt.

6

Stir the cornstarch slurry, then slowly pour into the simmering soup while stirring constantly. The soup will thicken in about 30 seconds.

7

Slowly drizzle the beaten eggs into the soup in a thin stream while stirring gently to create egg-drop ribbons.

8

Remove from heat immediately. Ladle into bowls and garnish with green onions and cilantro.

Our Tips

Súp cua is one of those dishes that looks fancier than it actually is to make. The key is in the broth: use a good-quality chicken stock (homemade if you have it, but store-bought low-sodium works fine) and don't skimp on the white pepper — it's the secret to that distinctive Vietnamese soup flavor. Most home cooks in Vietnam use canned white asparagus (măng tây hộp) because fresh asparagus can be expensive and seasonal there. In the US, fresh asparagus is widely available, so we recommend using it when in season. If you're using canned crab meat, look for lump or jumbo lump and pick through it carefully for shell fragments. For a more luxurious version, add a spoonful of crab roe or coral at the end — it gives the soup a beautiful orange hue and an extra layer of briny flavor. This soup is traditionally served as a starter at banquets, but it's hearty enough to be a light meal with some crusty bread on the side.