Appetizer and Side dish/ Noodle and Soup

Seafood Opo Squash Soup

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Seafood Opo Squash Soup is tasty, healthy and filled with delicate natural sweetness from opo squash, shrimp, and crab meat. With just one pot and a handful of ingredients, this easy soup will come together in less than 30 minutes.

Seafood Opo Squash Soup is healthy and delicious with sweetness from opo squash, shrimp and crab. This easy soup can be made in less than 30 minutes.

Whenever I travel back to Vietnam, I try to stuff myself with a lot of good food. It was no different this time. The next day after my long flight to Vietnam, my mom took me to a restaurant specializing in soups in Hanoi. I ordered crab opo squash soup and really enjoyed its sweet and delicate flavor. I immediately thought I needed to recreate this soup at home. So here it is, my seafood opo squash soup, inspired by my recent trip to Vietnam. I added shrimp because shrimp and opo squash is a classic pairing in Vietnamese cooking.

Seafood Opo Squash Soup

This soup is made from all natural ingredients and dairy-free. The main ingredients are opo squash, shrimp, crab, shallot, fish sauce, stock and some cornstarch (or tapioca starch).

Opo Squash

Here is a photo of opo squash in case you are not familiar with it.

Opo Squash

In Vietnamese, opo squash is called “qua bau.” It has a light green smooth skin and a long or bottle shape. When cutting open an opo squash, you will see that the center contains a spongy white part with seeds and this part should be discarded before cooking. When cooked, opo squash is mildly sweet.

Opo Squash a popular vegetable in Vietnam, and the most popular dish is opo squash soup with shrimp. The sweetness of shrimp compliments the mild flavor of opo squash extremely well. You can find this vegetable at Asian grocery stores or some Western grocery stores. Look for the one that feels heavy for its size. You can also buy winter melon (“qua bi“) instead of opo squash since they are used interchangeably in Vietnamese cooking.

Other ingredients

It’s best to use a stock with light flavor for this soup. I use kombu stock, and I think vegetable stock, chicken stock or pork broth will also work. Despite having delicate flavors, this opo squash soup is surprisingly filling. I attribute it to a high ratio of shrimp and crab meat to liquid. That is how I like my soup to be, but you can surely add more liquid and adjust it to your liking.

Seafood Opo Squash Soup is tasty, healthy and filled with delicate natural sweetness from opo squash, shrimp, and crab meat. With just one pot and a handful of ingredients, this easy soup will come together in less than 30 minutes.

I’d love to hear what you think about the dish, so please feel free to leave a comment. New recipes are added every week so let’s connect on Facebook, Pinterest and Instagram for the latest updates. You can find my collection of Vietnamese recipes here.

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Seafood Opo Squash Soup
Seafood Opo Squash Soup is tasty, healthy and filled with delicate natural sweetness from opo squash, shrimp, and crab meat. With just one pot and a handful of ingredients, this easy soup will come together in less than 30 minutes.
Seafood Opo Squash Soup is a healthy and delicious soup which can be made in less than 30 minutes.
Votes: 0
Rating: 0
You:
Rate this recipe!
Prep Time 10 minutes
Cook Time 10 minutes
Servings
people
Ingredients
  • 4 oz peeled and deveined shrimps
  • 1 opo squash, about 1.25 lbs
  • 2 1/2 cups vegetable stock, chicken stock, pork broth or kombu stock
  • 1 tablespoon minced shallots
  • 3 oz crab meat
  • 1 tablespoon fish sauce, divided
  • 1 1/2 tablespoons cornstarch or tapioca starch
  • black pepper
  • scallions, sliced
  • Cilantro, roughly chopped
Prep Time 10 minutes
Cook Time 10 minutes
Servings
people
Ingredients
  • 4 oz peeled and deveined shrimps
  • 1 opo squash, about 1.25 lbs
  • 2 1/2 cups vegetable stock, chicken stock, pork broth or kombu stock
  • 1 tablespoon minced shallots
  • 3 oz crab meat
  • 1 tablespoon fish sauce, divided
  • 1 1/2 tablespoons cornstarch or tapioca starch
  • black pepper
  • scallions, sliced
  • Cilantro, roughly chopped
Seafood Opo Squash Soup is a healthy and delicious soup which can be made in less than 30 minutes.
Votes: 0
Rating: 0
You:
Rate this recipe!
Instructions
  1. Chop shrimps into small pieces and set aside.
    Ingredients for Seafood Opo Squash Soup
  2. Trim off both ends and peel opo squash, then cut in half lengthwise. Cut in half lengthwise one more time and remove the spongy white part with seeds. After that, cut into 2-inch long chunks.
    Prep opo squash
  3. Bring the stock to a boil in a pot and add opo squash chunks. Cook for 3-5 minutes until the stock is boiling again and opo squash is softened.
    Boiling opo squash
  4. Transfer opo squash chunks and the stock to a blender and puree until smooth. You can also use an immersion blender to do this.
    Opo Squash puree
  5. Place a pot over medium - medium high heat, add oil and sauté shallots until fragrant. Add shrimp pieces, stir and cook for 30 seconds. Then add crab meat, 1 teaspoon of fish sauce and black pepper, stir and cook for about a minute.
    Cooking shrimp and crab
  6. Pour the opo squash puree into the pot. Stir and when it starts to boil, lower heat to a simmer. Add the remaining fish sauce (more or less to taste).
    Cooking Seafood Opo Squash Soup
  7. Whisk the cornstarch/tapioca starch with 1 1/2 tablespoons of water and drizzle the mixture slowly into the pot. Gently stir while adding the mixture until the soup is thickened to your liking.
  8. Cook for 1-2 more minutes. Add black pepper and sliced scallions, stir and then transfer to serving bowls. You can add more scallions and cilantro to each bowl.
    Seafood Opo Squash Soup is a healthy and delicious soup which can be made in less than 30 minutes. It is very filled with delicate sweetness from seafood and opo squash.
Recipe Notes

It's best to use a stock with light flavor for this soup. I use kombu stock, which can be made by either:

  • Soaking a 3''x4'' piece of kombu in 2 1/2 cups of water overnight
  • Placing a 3''x4'' piece of kombu in a pot with 2 1/2 cups of cold water over medium heat. When the water comes to a near boil, remove kombu.

Vegetable stock, chicken stock or pork broth will also work.

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