Bun Bo Hue Spicy Noodle Soup

Steaming bowl of Bun Bo Hue with thick rice noodles, tender beef, and aromatic lemongrass broth. Save
Steaming bowl of Bun Bo Hue with thick rice noodles, tender beef, and aromatic lemongrass broth. | pinbitekitchen.com

Bun Bo Hue brings the vibrant cuisine of central Vietnam to your kitchen with its signature spicy and aromatic broth. This beloved noodle dish features a rich beef and pork stock infused with bruised lemongrass, shrimp paste, and rock sugar, simmered slowly to develop deep umami flavors. The soup gets its distinctive reddish hue and heat from aromatic chili oil made with annatto seeds and fresh chili flakes. Thick round rice noodles provide the perfect base for tender beef shank, pork hock, and traditional Vietnamese sausage. Fresh herbs like mint, Thai basil, and cilantro add brightness, while lime wedges offer a tangy finish. Each bowl balances spicy, savory, and refreshing elements in perfect harmony.

The first time I had Bun Bo Hue was at a tiny family-run spot where the owner kept refilling my bowl without asking, her eyes watching eagerly for my reaction. That broth hit differently than pho sharper, more demanding, with a heat that made my nose tingle and flavors that felt like they were arguing in the best possible way. I went back three times that week, trying to decode what made it so addictive.

My friend Linh taught me that the shrimp paste is non-negotiable, no matter how weird it smells in the jar. She laughed watching me hold my breath the first time I added it, but then refused to eat my batch until I confessedId doubled the amount. Now I understand its the secret weapon that makes people ask whats in this soup.

Ingredients

  • Beef shank and pork hock: These tough cuts need the long simmer to become meltingly tender and theyre what gives the broth its body
  • Lemongrass: Bruise it hard with your knife back to release those citrusy oils that define Hues cuisine
  • Shrimp paste: Dont skip it, it smells funky straight from the jar but transforms into something incredible in the broth
  • Thick rice noodles: Bun Bo Hue noodles are round and hearty, perfect for standing up to this bold soup
  • Annatto seeds: They give the broth that signature red-orange color without adding much flavor
  • Fresh herbs: The pile of mint, cilantro and Thai basil at the end cuts through the richness like magic

Instructions

Build the foundation:
Blanch the beef shank and pork hock in boiling water for five minutes, then rinse everything thoroughly and start fresh with clean water to get that crystal clear broth
Simmer slow and low:
Add your bruised lemongrass, halved onion, smashed garlic and ginger to the pot, then let it bubble gently for two hours while your kitchen fills with the most incredible aroma
Season boldly:
Stir in the fish sauce, salt, both sugars and that crucial shrimp paste, then taste and adjust because this soup needs to punch you in the best way
Make the magic oil:
Heat oil with annatto seeds until they turn your oil brilliant red, then cook down shallots and garlic before hitting it with chili flakes for that signature kick
Prep your proteins:
Cook the noodles until theyre just right, slice your meats thin, and simmer those blood cubes gently if youre going full traditional
Bring it together:
Pile noodles into bowls, arrange all your meats on top, then ladle that steaming broth over everything and finish with a drizzle of your red chili oil
Finish like you mean it:
Crowd each bowl with red onion, bean sprouts, banana blossom and an absurd amount of fresh herbs, then squeeze lime over everything right before diving in
Spicy Bun Bo Hue topped with fresh herbs, lime wedges, and a drizzle of red chili oil. Save
Spicy Bun Bo Hue topped with fresh herbs, lime wedges, and a drizzle of red chili oil. | pinbitekitchen.com

Last winter I made a giant pot during a snowstorm and my neighbors kept finding reasons to stop by, somehow knowing exactly when Id be ladling bowls. Theres something about this soup that pulls people to the table faster than anything else I cook.

Getting The Broth Right

I learned the hard way that rushing the broth by turning up the heat makes it cloudy and less flavorful. Keep it at a gentle simmer and youll taste the difference in every spoonful.

Noodle Game Strong

Overcooked noodles are the saddest thing in this dish. Pull them a minute early because they keep cooking in that hot broth and nobody likes mushy noodles with their perfect soup.

Build Your Bowl

The real secret is arranging all your toppings in the bowl before pouring the broth, that way everything gets hot evenly and the presentation looks stunning every single time.

  • Put your lime wedges on the side so guests can control the acidity
  • Extra chili oil on the table lets heat lovers add more to their hearts content
  • Fresh herbs should go in last so they stay bright and perky
Fragrant Bun Bo Hue served with sliced meats, bean sprouts, and colorful garnishes on a ceramic plate. Save
Fragrant Bun Bo Hue served with sliced meats, bean sprouts, and colorful garnishes on a ceramic plate. | pinbitekitchen.com

Theres nothing quite like watching friends customize their bowls, debating how much lime to squeeze or whether to add more heat, and then seeing that first perfect spoonful disappear.

Common Recipe Questions

Bun Bo Hue originates from central Vietnam and features a spicier, more complex broth with lemongrass and shrimp paste, while pho has a milder, anise-scented broth. The noodles are also thicker and rounder compared to pho's flat rice noodles.

Absolutely. Reduce the chili flakes in the aromatic oil and serve additional chili on the side for those who prefer more heat. The base broth itself has minimal spice.

Shrimp paste (mam ruoc) is essential for the characteristic depth of Bun Bo Hue. It adds umami without overwhelming seafood flavor. Look for it in Asian markets or substitute with extra fish sauce.

Beef shank with bone is traditional, as it renders collagen-rich broth and becomes tender during long simmering. Brisket or flank work well as additional proteins for serving.

Yes, the broth actually improves after resting overnight in the refrigerator. Simply skim any solidified fat before reheating. Cook noodles fresh when serving to maintain texture.

Bun Bo Hue Spicy Noodle Soup

Aromatic Vietnamese noodle soup with tender beef, spicy chili oil, and fragrant lemongrass broth.

Prep 30m
Cook 150m
Total 180m
Servings 6
Difficulty Medium

Ingredients

Broth

  • 3.3 lbs beef shank, bone-in
  • 1.1 lbs pork hock
  • 12 cups water
  • 2 stalks lemongrass, bruised
  • 1 large yellow onion, halved
  • 4 cloves garlic, smashed
  • 1 thumb-sized piece ginger, sliced
  • 2 tablespoons fish sauce
  • 1 tablespoon salt
  • 2 teaspoons sugar
  • 1 tablespoon rock sugar
  • 1 tablespoon shrimp paste (mam ruoc)

Aromatic Chili Oil

  • 2 tablespoons vegetable oil
  • 1 tablespoon annatto seeds
  • 2 tablespoons minced shallots
  • 2 tablespoons minced garlic
  • 2 tablespoons chili flakes

Noodles & Proteins

  • 1.3 lbs thick round rice noodles
  • 10 oz cooked beef brisket, thinly sliced
  • 10 oz cooked pork blood cubes
  • 6 Vietnamese pork sausage patties, sliced

Garnishes

  • 1 small red onion, thinly sliced
  • 2 limes, cut into wedges
  • 1 cup bean sprouts
  • 1 cup shredded banana blossom
  • 1 cup fresh herbs (cilantro, mint, Thai basil)
  • 3 scallions, thinly sliced
  • Sliced birds eye chili to taste

Instructions

1
Prepare the Broth Base: Place beef shank and pork hock in a large stock pot. Cover with water, bring to a boil for 5 minutes, then drain and rinse the meat thoroughly to remove impurities.
2
Simmer the Aromatic Broth: Refill the pot with 12 cups water. Add cleaned meat, lemongrass, onion, garlic, and ginger. Bring to a boil, skimming off scum as needed. Lower heat to a simmer.
3
Season and Cook: Add fish sauce, salt, sugar, rock sugar, and shrimp paste. Simmer for 2 hours until meat is tender. Remove meats and slice beef shank and pork hock into serving pieces. Strain broth and discard solids.
4
Make Aromatic Chili Oil: Heat vegetable oil in a small frying pan. Add annatto seeds and cook for 1-2 minutes until oil turns red, then discard seeds. Add shallots and garlic, sauté until fragrant. Stir in chili flakes and cook briefly.
5
Prepare Noodles and Proteins: Cook rice noodles according to package instructions, drain and set aside. If using pork blood cubes, simmer in gently boiling water for 10 minutes. Slice beef brisket and Vietnamese sausage.
6
Assemble the Bowls: Place a portion of noodles in each serving bowl. Top with beef shank, pork hock, brisket, pork blood cubes, and sausage slices. Ladle hot broth over the top and drizzle with aromatic chili oil.
7
Garnish and Serve: Add red onion, lime wedges, bean sprouts, banana blossom, fresh herbs, scallions, and chili slices as desired. Serve immediately with extra fish sauce or shrimp paste on the side.
Additional Information

Equipment Needed

  • Large stock pot
  • Strainer
  • Small frying pan
  • Ladle
  • Knife and cutting board

Nutrition (Per Serving)

Calories 650
Protein 45g
Carbs 60g
Fat 22g

Allergy Information

  • Contains fish sauce (fish), shrimp paste (shellfish), and pork. Some sausage patties may contain wheat or soy.
Olivia Marsh

Sharing easy, wholesome recipes and kitchen tips for fellow food lovers.