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Vietnamese Bun Bo Nam Bo (Hanoi-Style Wok-Seared Beef and Cool Rice Vermicelli Bowl)

Vietnamese Bun Bo Nam Bo

A bright, refreshing Hanoi noodle bowl that layers cool rice vermicelli with crisp lettuce, cucumber, bean sprouts, and a fistful of fresh herbs, then crowns it all with garlicky wok-seared beef, crushed peanuts, and crackling fried shallots. A punchy lime-and-fish-sauce dressing pulls every element together at the table. No broth, no fuss, just heat meeting cool in the best way.
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Prep Time 30 minutes
Cook Time 10 minutes
Total Time 40 minutes
Servings: 4 Bowls
Course: Main Course
Calories: 610
Ingredients Equipment Method Notes

Ingredients
  

  • 1.25 lb beef sirloin or flank steak thinly sliced against the grain
  • 3 tbsp fish sauce divided, use a good Vietnamese brand
  • 4 cloves garlic finely minced, divided
  • 2 tsp granulated sugar for the beef marinade
  • 1 tbsp neutral cooking oil plus more for stir-frying
  • 12 oz dried rice vermicelli noodles bun, thin variety
  • 1 cup green papaya or carrot julienned
  • 3 tbsp rice vinegar for quick-pickling
  • 1 tsp salt for the pickle
  • 4 cups green leaf lettuce thinly shredded
  • 2 cups bean sprouts rinsed
  • 1 large English cucumber halved and thinly sliced
  • 1 cup fresh Vietnamese mint or spearmint leaves picked
  • 0.5 cup fresh cilantro leaves and tender stems
  • 0.5 cup fresh perilla or Thai basil leaves picked
  • 0.33 cup lime juice freshly squeezed, from about 3 limes
  • 3 tbsp granulated sugar for the nuoc cham
  • 0.5 cup warm water for the nuoc cham
  • 2 bird's eye chilies finely minced, or to taste
  • 0.5 cup crispy fried shallots store-bought or homemade
  • 0.5 cup roasted peanuts coarsely crushed

Equipment

  • 1 large heavy skillet or carbon steel wok needs to get very hot
  • 1 Large pot for boiling noodles
  • 1 Colander
  • 1 Sharp chef’s knife for thin beef slicing
  • 2 Mixing bowls one for marinade, one for pickled vegetables
  • 1 small jar or bowl for nuoc cham dressing
  • 4 large serving bowls

Method
 

  1. In a mixing bowl, combine the thinly sliced beef with 1 tablespoon fish sauce, half of the minced garlic, 2 teaspoons sugar, and 1 tablespoon neutral oil. Toss well and let marinate at room temperature while you prepare everything else, at least 20 minutes.
  2. In a small bowl, toss the julienned green papaya or carrot with the rice vinegar and 1 teaspoon salt. Let it sit for 15 minutes, then squeeze out the excess liquid and set aside.
  3. Make the nuoc cham dressing by whisking together the lime juice, 3 tablespoons sugar, the remaining 2 tablespoons fish sauce, warm water, remaining minced garlic, and minced bird's eye chilies. Taste and adjust until it is bright, salty, sweet, and tart in balance. Set aside.
  4. Bring a large pot of water to a boil. Add the rice vermicelli and cook according to package directions until just tender, usually 3 to 5 minutes. Drain immediately and rinse thoroughly under cold running water. Shake the colander well to remove all excess water, then divide the noodles among 4 large serving bowls.
  5. Layer the shredded lettuce, bean sprouts, sliced cucumber, and the fresh herbs over the cool noodles. Scatter the pickled papaya or carrot on top.
  6. Heat a large heavy skillet or wok over the highest heat with 1 tablespoon neutral oil until it is smoking. Add the marinated beef in a single layer and sear undisturbed for 30 seconds, then stir-fry quickly for another 60 to 90 seconds, until the beef is caramelized on the edges but still juicy. Work in 2 batches if needed so the pan stays screaming hot.
  7. Immediately spoon the hot beef and any pan juices over each bowl of noodles and vegetables.
  8. Shower each bowl generously with crispy fried shallots and crushed roasted peanuts.
  9. Pour about 4 to 5 tablespoons of nuoc cham over each bowl at the table, then toss everything together with chopsticks so the dressing reaches every strand. Serve immediately with extra nuoc cham, sliced chili, and lime wedges on the side.

Notes

  • Slice the beef against the grain while it is still partially frozen for paper-thin, tender pieces.
  • Get the skillet screaming hot before adding the beef so it sears in about 90 seconds rather than steaming.
  • Serve with extra nuoc cham on the side, a few slices of fresh red chili, a wedge of lime, and a tall glass of iced Vietnamese tea (tra da).
  • Rinse cooked vermicelli under cold water and drain very well; wet noodles dilute the dressing.
  • Leftover marinated beef can be refrigerated for up to 24 hours before cooking.