Vietnamese Crab and Tomato Noodle Soup with Pork (Bun Rieu)

Vietnamese Crab and Tomato Noodle Soup with Pork (Bun Rieu)

If you’re craving a flavorful noodle soup and you have a lot of tomatoes on hand, try Bún Riêu!

What is Bun Rieu?

Bún Riêu is a popular Vietnamese noodle soup with round rice vermicelli noodles served in a tomato-based broth and a variety of toppings, such crab meatballs/crab cakes, fried tofu and blood cake.

This noodle soup is often enjoyed with fresh vegetables and herbs, with split water spinach stems (Rau Muống) being the most popular, along with a squeeze of lime.

Fermented shrimp paste is often served on the side for further customization.

Traditionally, the broth is made from rice paddy crabs. The small crabs are pounded into a paste with a mortar and pestle then mixed with water. The mixture is poured into a pot with the small bits of crab meat, leaving the shells behind.

This strained liquid, along with the crab meat, forms the base for Bún Riêu broth.

However, more modern and western versions often use a a heartier stock made from pork and/or chicken bones.

In this version of Bún Rêu, we’ll use the heartier option with pork bones, as finding pounded rice paddy crabs in the United States can be challenging, if not impossible.

If you are looking for a Bún Riêu recipe made with fresh crab, click here.

vietnamese crab and tomato noodle soup with pork (bun rieu)

What You Will Need

To make this version of Bún Riêu, gather the following ingredients:

  • Pork or chicken bones — You can use either pork or chicken bones or a combination of the two for the stock. I like to use meaty pork bones, such as pork spare ribs and pork neck bones so I can enjoy the meat as well. If you are looking for chicken bones, Asian supermarkets often sale chicken carcasses for stock-making purposes.
  • Tomatoes — Use very ripe tomatoes to get a more vibrant red color for the broth. You can also use canned tomatoes if fresh tomatoes aren’t available.
  • Fried tofu — You can find fried tofu in either the refrigerator or freezer sections of many Asian grocery stores. If you can’t locate fried tofu, you can fry your own tofu using firm tofu. Drain them thoroughly and towel dry. Cut them into small blocks then pan fry with neutral oil until golden brown on all sides.
  • Pork blood cake — This is an optional topping if you enjoy it. Otherwise, omit. You can get them already cooked at Asian supermarkets in the refrigerated section or cook them yourself.
Ingredients for Vietnamese Pork and Crab Noodle Soup (Bun Rieu Cua Thit) - Tomatoes, fried tofu, congealed pork blood and pork bones
Ingredients for Vietnamese Pork and Crab Noodle Soup (Bun Rieu Cua Thit) – Tomatoes, fried tofu, congealed pork blood and pork bones
  • Ketchup — Since we doing a western version of Bún Riêu, we will use another western favorite. Ketchup adds a tangy sweetness to the broth, which replaces the need for sugar. It also adds more redness to the broth. Don’t have ketchup? Simply use your favorite sweetener. Depending on the sweetness of the tomatoes, you may not need much.
  • Garlic and shallots — The aromatics we will be using.
  • Neutral oil — For pan frying the garlic and shallots to release their aorma. I’m using vegetable oil.
Meatball Mixture for Vietnamese Pork and Crab Noodle Soup (Bun Rieu Cua Thit)
The meatball mixture before forming into balls and dropping them into the pot.
  • Ground pork, eggs, dried salted shrimp, and jarred/canned crab paste — These are the ingredients for the crab meatballs/crab cakes.Sometimes, I include ground pork for a meatier version that can be shaped into meatballs.Other times, I leave out the ground pork for a more delicate crab cake texture, similar to the traditional paddy crab Bún Riêu. This thinner mixture doesn’t need to be shaped into meatballs; it’s simply poured into the hot broth to cook.You can get the crab paste in either jars or cans in many Asian supermarkets. See picture below. Sometimes they are labeled as minced crab in spices. This is the western alternative to freshly pounded rice paddy crabs and it comes already seasoned.
Fermented/salted shrimp paste and crab paste for Bun Rieu (Vietnamese crab and tomato noodle soup with pork)
Fermented/salted shrimp paste and crab paste for Bun Rieu (Vietnamese crab and tomato noodle soup with pork)
  • Seasonings: Fermented shrimp paste (Mắm Ruốc), salt, chicken or mushroom bouillon powder, and and MSG.One of the most distinctive seasonings in Bún Riêu is fermented shrimp paste (mắm ruốc). This highly pungent seasoning adds a unique salty umami flavor to the broth. See picture above.Bouillon powder and MSG are optional but highly recommended for a more authentic flavor. You can alternatively skip them and adjust to taste with additional salt.
  • Round rice noodles — My favorite rice noodles are made from the same brand as my favorite rice, which is either Three Ladies, Buddha, or Dragon Fly. Look for medium rice noodles.
Ba Co Gai - Three Ladies Rice vermicelli Dried Noodles - 2 lbs - Noodles for Vietnamese Pork and Crab Noodle Soup (Bun Rieu Cua Thit)
Ba Co Gai – Three Ladies Rice vermicelli Dried Noodles – 2 lbs – Noodles for Vietnamese Pork and Crab Noodle Soup (Bun Rieu Cua Thit)
  • Garnishes — You can use a combination of thinly sliced scallions/green onions and/or cilantro to top the bowl for a beautiful finish.
  • Fresh vegetables — Water spinach is also known as Rau Muống in Vietnamese and Ong Choy in Cantonese. The tubular stem is the highly prized part of the water spinach and a must-have vegetable to eat with Bún Riêu. It’s normally shredded into thin strips using this cool gadget. Water spinach can get pricey in the colder months or not even be available. If that’s the case, use finely shredded white/purple cabbage instead. You can also use bean sprouts.
Vegetables for Vietnamese Pork and Crab Noodle Soup (Bun Rieu Cua Thit) - Split water spinach stems (rau muong) and fresh herbs
  • Fresh herbs and limes — A collection of herbs is known Rau Thơm in Vietnamese. For bún riêu, you can use the following herbs: perilla (tía tô), spearmint (húng lũi), Vietnamese balm (kinh giới), fish mint (diếp cá), and sorrel (rau chua). A squeeze of lime is added tableside. The acidity complements the rich broth nicely.

Full recipe below. Happy cooking!

Vietnamese Crab and Tomato Noodle Soup with Pork (Bun Rieu)
Vietnamese Crab and Tomato Noodle Soup with Pork (Bun Rieu)

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Vietnamese Crab and Tomato Noodle Soup with Pork (Bún Riêu) Recipe

Vietnamese Crab and Tomato Noodle Soup with Pork (Bun Rieu)


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5 from 2 reviews

  • Author: Vicky Pham
  • Total Time: 1 hour 20 minutes
  • Yield: 8 1x

Description

Enjoy one of Vietnam’s favorite noodle soups with our family recipe. It’s packed with umami flavor, tasty toppings, and slurp-worthy noodles. Got tomatoes to use up? This is the recipe for you.


Ingredients

Units Scale

Pork Stock

  • 3 lbs pork spare ribs or pork neck bones (cut into bite-sized pieces)
  • 5 quarts water

Crab and Pork Meatballs/Crab Cakes

Tomatoes

  • 2 tablespoons vegetable oil
  • 1 tablespoon minced garlic
  • 1 tablespoon minced shallot
  • 5 large ripe tomatoes (cut into wedges)

Broth Seasonings

Noodles

  • 2 lbs medium dried rice noodles (cook per package instructions)

Optional Accompaniments

  • 1/2 lb fried tofu cubes
  • Pork blood cake
  • Water spinach stems (split stems into thin strips)
  • Lettuce or cabbage (thinly sliced)
  • Bean sprouts
  • Limes (cut into wedges)
  • Green onions (thinly sliced for garnish)

Instructions

Pork Stock

  1. Clean the bones (optional but recommended): In a large stock pot (at least 7 quarts), add pork bones and enough water to cover. Bring the pot to a boil and continue boiling until impurities (foam) rise to the surface (about 8 minutes). Place a colander in the sink, drain the bones, and rinse the bones with cold water.
  2. Prepare stock: Clean the stock pot and return it to the stove. Add 5 quarts of water and the parboiled bones. Simmer on medium-low heat for one hour, or until the pork can be easily pierced with a chopstick. Occasionally, skim off the impurities that might float to the top and discard. While the broth is simmering, prepare the remaining ingredients.

Crab and Pork Meatballs/Crab Cakes

  1. Prepare dried shrimp: Finely chop the presoaked dried salted shrimp in a food processor and set aside.
  2. Prepare the meatballs: In a skillet, heat oil over medium heat. Add shallots and garlic, and sauté until fragrant (about 20 seconds). Add the jarred or canned spiced crab and the chopped dried shrimp. Sauté for about 5 minutes. Transfer this mixture into a medium bowl, add ground pork and beaten eggs. Mix until well combined.
  3. Cook meatballs: Using two spoons, shape the crab and pork mixture into small balls and gently drop them into the pot one by one. Reduce the heat to a low simmer and proceed to prepare the tomatoes.

Tomatoes

  1. Toast aromatics: In the now-empty skillet, heat more vegetable oil. Sauté garlic and shallots until fragrant (20 seconds).
  2. Add the sliced tomatoes and stir gently. Cook for 2 minutes or until the tomatoes release some of their juices.
  3. Add the tomato mixture to the pot.

Season the Stock and Add Tofu

  1. Season to taste: Season the broth with salt (4 teaspoons), chicken/mushroom bouillon powder (2 tablespoons), and MSG (1 teaspoon).
  2. Prepare ketchup and shrimp paste mixture: In a small bowl, mix the ketchup and shrimp paste. Ladle some hot broth from the stock pot into the bowl to liquefy the mixture before adding it to the soup. Add a little at a time to adjust to taste.
  3. Add fried tofu to the stock pot.

Assembly

  1. Add noodles and toppings: Place a handful of cooked rice noodles into a bowl. Ladle hot soup over the noodles, including pieces of pork, meatballs/crab cakes, and fried tofu.
  2. Finish: Garnish with green onions and serve with your favorite vegetables, herbs, lime, and additional shrimp paste on the side for customization.
  • Prep Time: 20 min
  • Cook Time: 1 hour
  • Category: entree
  • Method: Stovetop
  • Cuisine: vietnamese, asian
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27 responses to “Vietnamese Crab and Tomato Noodle Soup with Pork (Bun Rieu)”

  1. So delicious, made it many times and the family loved it. Thanks!

  2. I followed your recipe and it’s the best bun Rieu I ever had. Thank you so much

    1. Yay! Glad that you enjoyed the recipe and thank you so much for leaving a comment.

  3. My absolute favorite dish! Thank you Vicky!

  4. Tonight is the 5th time I am making this recipe and its so similar to the way my Mom makes it. Thank you for this post!

  5. Delicious. Thank you for the recipe

  6. I tried this recipe using baby back rib bones. I also added 1/2 lb ground pork to the egg, spiced crab mixture. It was delicious! I also think that you can leave out the shrimp paste and allow people to add later when they eat the soup at the dinner table. Finally, I cooked the bones for longer so the meat would be very very soft. Thank you for a great recipe.

  7. How big of a pot did you use that fit everything?

  8. Wow comments are sometimes… seriously no words for it. Yes authentic means originality from the country we grew up in and love. But half of the so called Vietnamese people are so Americanized they don’t know the difference between spices.

    First off, recipes are out there to help you make a dish you miss in life or what mommy or Grammy used to make. If you don’t agree with any of it, “tweak it” to your liking. Everyone have different taste buds. If you’re true Vietnamese, you’ll know spices and seasoning differ between the northern and southern regions. Hence, different flavors in Pho. Same as if you go to a Cantonese or Sichuan restaurant.

    So to set the records straight, we in the US learn to tweak our ingredients as we see fit, especially with what is available to us. So appreciate what is given and stop criticizing unless you can come up with a better substitute for your so called authentic soup.

    I can make “Rieu” from scratch and from short cut methods, do you know what the ingredients are to begin with?! This author is making life easier for what we crave for. Don’t hate but praise our own creativity unless you can come up with better.

  9. I am Europian but lived in Asia for many years. When I first came to the States, there was not even a soy sauce on the shelves in any supermarket. So I made do with tomato soup base added to the pork bone pots along with Chicken Bouillon and roasted onion and roasted carrot (instead lots of salt) With lots of fresh tomato I even use the grapes one (sweeter) if you are allergic to crab, use dried fish base (else it would not be bun rieu), or dried kelp if you could find it. Add nuoc mam, Vietnamese fish sauce or Thai fish sauce. The creamy tomato soup will add the red seed color and the "crab spices" look. Use shrimp balls and fish balls (Korean best) in the frozen section in almost the end to make tasty and do not forget the fried tofu. Voila a bowl of soup alternative to bun rieu and still get almost the same flavor. Good luck guys!

  10. So… sadly I became allergic to shellfish when i was 13. I miss eating this dish so much. Do you know a method I can make something like this without the shellfish products that will give it an oily tomato flavor like this soup?

    1. Hi Mylinh! Absolutely. You can continue to make the recipe as is but without the dried shrimp and canned minced prawns/crab. Essentially a pork version. You probably will need to up the ketchup amount to replace the red color that will be missing from the canned spices. Maybe double it and/or use annatto oil (annatto seeds fried in oil to render the red color; then discard seeds). Hope that helps!

  11. Very nice recipe. I will make it today. I have everything I need. I love to cook. I am italian but I have an interest in learning all cultures. I tried my hand at many ethnic recipes. I love to try recipes from Vietnam. Vicky, I will keep you posted. Thank you for your time, this is a very interesting site.

    1. Thank for the comment, Jimmy! Hope you like the recipe 🙂

  12. Thanks for posting this recipe. It looks really good and I’ll try it one day soon. I’m so glad I found your site and I’ve just tried your matcha milk tea with grass jelly. My teenage sons loved it.For those who criticized this recipe, please contribute if you have suggestions on how to make this recipe better. I’m sure we all would love to hear ideas. Don’t just criticize.

    1. Thank you, Hanna!

  13. I used this recipe* sorry for the spelling error!

  14. I used my recipe for my first attempt at bun rieu. My Vietnamese family and friends enjoyed this recipe very much! My dad says it’s even better than the restaurants in little Saigon. It’s my go-to recipe now! About to make some for the second time.Thank you!

    1. Used this recipe*

      1. LOL. I was initially confused. So glad to hear you like the recipe 🙂

  15. Who would want to eat that god awful chemical laden minced crab paste? No wonder people can’t taste anything.

    1. I do! I do! Or until I can find the good stuff. Thanks for visiting!

      1. The good stuffs are all around you. If you use your taste buds to find them. Bun Rieu was from Ha Noi and they use paddy crabs. I don’t know where you are but the US even has better crabs. The colder the water, the tastier the crabs. And yet, instead of using the best ingredients available, you use short cut with tasteless pork hence the needs for all these chemicals that you can’t even pronounced. Real bun rieu only needs crabs, fish sauce, annetto oil, lemongrass, fried tofu, shallots, cut tomatoes pieces, noodles and vegs. That’s all. That’s how it was made. That’s how it should be made. You said you want "authentic Vietnamese foods." Authentic means to make it they way it was supposed to be.

  16. Hi Vicky, which brand of shrimp paste are you using in the tomato/fried tofu part ? I have some at home but it’s like a purplish color and it’s quite strong. Just wanted to make sure I’m using the right one…

    Thanks!

    1. Hi Katie, I typically use Lee Kum Lee shrimp paste but I’ve seen the purple one and would assume that would work too.

  17. Hello, can you specify what type of pork bone you recommend for this recipe? Thank you!

    1. Ah, good question. I use a combination of pork neck bones (they are cheap!) and pork spare ribs (cut into bite size pieces). Once I’m done making my stock, I usually discard the pork neck bones or snack on them with a bit of fish sauce =). For the spare ribs, I reserve them and use them as meaty toppings for the bowls.

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