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Bun Bo Hue

A bold, complex Central Vietnamese noodle soup built on a lemongrass- and shrimp-paste-scented pork and beef broth, served with round rice vermicelli, sliced beef shank, and a vivid chili oil. Plan ahead: the broth simmers for 2 hours.

180 minHardServes 6520 cal/serving

VietnameseSoupStovetopStandardHigh FiberHigh ProteinGluten-FreeDairy-FreeLow-SodiumAlcohol-Free

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Ingredients

  • 3 lbs pork neck bones or pork trotters, blanched
  • 1.5 lbs beef shank (cross-cut)
  • 4 lemongrass stalks, bruised, halved
  • 2 tbsp fermented shrimp paste (mam ruoc; find at Asian grocery stores)
  • 1/4 cup fish sauce
  • 2 tbsp granulated sugar
  • 2 tsp salt
  • 2 tbsp annatto seeds (achiote) or 2 tbsp vegetable oil for color
  • 2 tbsp dried red chili flakes (or Korean gochugaru)
  • 1/4 cup vegetable oil
  • 6 garlic cloves, minced
  • 4 shallots, minced
  • 1 lb round rice vermicelli noodles (bun bo hue size, about 3mm thick), soaked, drained
  • 4 green onions, thinly sliced
  • 2 cups fresh bean sprouts
  • 2 limes, cut into wedges
  • 2 cups fresh herb mix (perilla, mint, banana blossom, or any combination)

Instructions

  1. 1

    Blanch the 3 lbs blanched pork neck bones or pork trotters: place them in a large pot, cover with cold water, and bring to a boil over high heat. Boil for 5 minutes, then drain and rinse both the bones and the pot thoroughly under cold water. This removes impurities and ensures a clear broth.

  2. 2

    Return the cleaned pork bones and 1.5 lbs beef shank (cross-cut) to the pot. Add 4 quarts of cold water and the 4 bruised, halved lemongrass stalks. Bring to a boil, skimming any foam that rises. Reduce to a gentle simmer.

  3. 3

    Mix 2 tbsp fermented shrimp paste (mam ruoc; find at Asian grocery stores) with 1/4 cup hot water until dissolved, then strain through a fine sieve into the pot. Add 1/4 cup fish sauce, 2 tbsp granulated sugar, and 2 tsp salt. Simmer uncovered for at least 90 minutes until the beef shank is fork-tender. Check that beef reaches an internal temperature of 160 degrees F (71 degrees C) and is fully cooked through.

  4. 4

    While the broth simmers, make the chili oil: in a small saucepan, heat 1/4 cup vegetable oil over medium heat. Add 6 minced garlic cloves and 4 minced shallots and cook for 2 minutes until softened. Add 2 tbsp dried red chili flakes (or Korean gochugaru) and 2 tbsp annatto seeds (achiote) or 2 tbsp vegetable oil for color and cook for 1 minute more until fragrant. Remove from heat and set aside.

  5. 5

    Remove the beef shank from the broth. Let it cool slightly, then slice thinly against the grain. Remove and discard the lemongrass. Taste the broth and adjust with more fish sauce or salt as needed.

  6. 6

    Cook the 1 lb round rice vermicelli noodles (bun bo hue size, about 3mm thick) according to package instructions, usually 3 to 5 minutes in boiling water, until tender but still have a slight chew. Drain and rinse with cold water.

  7. 7

    To serve, divide the noodles among deep bowls. Arrange sliced beef shank on top. Ladle the hot broth over everything. Spoon a teaspoon of chili oil over each bowl. Garnish with 4 thinly sliced green onions and serve with 2 cups fresh bean sprouts, 2 cups fresh herb mix (perilla, mint, banana blossom, or any combination), and 2 cut into wedges limes wedges on the side for guests to add as desired.

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Questions

What internal temperature should Bun Bo Hue reach?

For Bun Bo Hue, the target internal temperature is 160 F (about 70 C), given in step 3. A probe thermometer removes the guesswork.

Why blanch first in Bun Bo Hue?

Step 1 reads: "Blanch the 3 lbs blanched pork neck bones or pork trotters: place them in a large pot, cover with cold water, and bring to a boil over high heat." The quick boil in step 1 sets the color and takes off the raw edge. If the step follows it with cold water, that is to stop the cooking at once so the vegetables stay bright and crisp.

Is there a substitute for achiote in Bun Bo Hue?

The entry for Bun Bo Hue calls for 2 tbsp annatto seeds (achiote) or 2 tbsp vegetable oil for color. In its place: Mix paprika with a pinch of turmeric and a few drops of vinegar for the color and mild earthiness.

How hot is Bun Bo Hue?

Moderately. The heat in Bun Bo Hue comes from 2 tbsp dried red chili flakes (or Korean gochugaru). For a milder plate, halve the chili flakes; nothing else in the method changes. For more, add it at the table rather than in the pot, so everyone sets their own level.

How long does Bun Bo Hue keep?

Refrigerate Bun Bo Hue for up to four days, or freeze it in portions for up to three months. Reheat gently on the stovetop with a splash of water or stock to loosen it. The rice noodles will go on swelling in the broth; for the best texture on day two, store that part separately or cook it fresh.

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