Authentic Phở Bò: A Soul-Warming Vietnamese Beef Noodle Soup

🌍 Cuisine: Vietnamese
🏷️ Category: Main Course
⏱️ Prep: 45 minutes
🍳 Cook: 6 hours
👥 Serves: 6 servings

📝 About This Recipe

Transport your kitchen to the bustling streets of Hanoi with this deeply aromatic and naturally dairy-free masterpiece. This Phở Bò features a crystal-clear broth simmered for hours with charred aromatics and toasted spices, creating a complex profile of sweet, salty, and earthy notes. It is a labor of love that rewards the senses with silky rice noodles, tender beef, and a vibrant bouquet of fresh herbs.

🥗 Ingredients

The Broth Base

  • 5 pounds Beef marrow bones and knuckle bones (rinsed well)
  • 2 large Yellow onions (halved, skins on)
  • 4 inch piece Fresh ginger (sliced lengthwise)
  • 1.5 ounces Yellow rock sugar (or 2 tbsp granulated sugar)
  • 1/2 cup Fish sauce (Nước mắm) (high quality)
  • 1 tablespoon Salt (to taste)

The Spice Sachet

  • 8 whole Star anise (toasted)
  • 2 pieces Cinnamon sticks (toasted)
  • 2 whole Black cardamom pods (cracked and toasted)
  • 1 tablespoon Coriander seeds (toasted)
  • 4 whole Cloves (toasted)

Noodles and Beef

  • 1 pound Dried flat rice sticks (Bánh phở) (medium width)
  • 1 pound Beef flank or brisket (cooked in broth and sliced)
  • 1/2 pound Eye of round steak (sliced paper-thin against the grain)

Fresh Garnishes

  • 1 bunch Thai basil (fresh leaves only)
  • 2 cups Bean sprouts (raw and crunchy)
  • 1/2 cup Fresh cilantro and Scallions (finely chopped)
  • 2 pieces Lime (cut into wedges)
  • to taste Sriracha and Hoisin sauce (served on the side)

👨‍🍳 Instructions

  1. 1

    Place the beef bones in a large stockpot and cover with cold water. Bring to a rolling boil for 10 minutes to release impurities. Drain the bones and rinse them thoroughly under cold water until clean.

  2. 2

    While the bones are blanching, char your onions and ginger. Place them directly over a gas flame or under a broiler until the skins are blackened and the insides are fragrant and softened. Peel away the burnt skin and rinse under water.

  3. 3

    In a clean stockpot, add the rinsed bones, charred onions, ginger, and 6 quarts of filtered water. Bring to a boil, then immediately reduce to a very gentle simmer.

  4. 4

    Add the beef flank or brisket to the pot. Simmer the meat for 1.5 to 2 hours until tender, then remove it, plunge into an ice bath to prevent darkening, and refrigerate for easy slicing later.

  5. 5

    In a dry skillet over medium heat, toast the star anise, cinnamon, cardamom, coriander seeds, and cloves for 2-3 minutes until highly aromatic. Place them in a spice bag or cheesecloth.

  6. 6

    Add the spice bag, rock sugar, salt, and fish sauce to the simmering broth. Continue to simmer uncovered for at least 4 more hours. Regularly skim off any foam or excess fat that rises to the surface.

  7. 7

    Prepare the rice noodles by soaking them in cold water for 30 minutes, then blanching them in boiling water for 10-20 seconds just before serving. Drain and set aside.

  8. 8

    Remove the bones and aromatics from the broth. Strain the liquid through a fine-mesh sieve lined with cheesecloth into a clean pot to ensure a crystal-clear appearance.

  9. 9

    Taste the broth. It should be slightly 'over-seasoned' because the noodles and garnishes will dilute the flavor. Add more fish sauce or sugar if necessary.

  10. 10

    Thinly slice the chilled cooked brisket and the raw eye of round steak. The raw steak should be as thin as possible so the hot broth can cook it instantly.

  11. 11

    To assemble, place a portion of noodles in a deep bowl. Top with slices of cooked brisket and raw steak, then sprinkle with chopped cilantro and scallions.

  12. 12

    Bring the broth to a rolling boil and ladle it immediately over the beef and noodles. The boiling broth will cook the raw beef to a perfect medium-rare.

💡 Chef's Tips

For the clearest broth, never let it reach a vigorous boil after the initial blanching; a gentle 'smile' or tiny bubbles is all you need. To get paper-thin slices of raw beef, freeze the steak for 30-45 minutes before slicing to firm it up. Always rinse your noodles after boiling to remove excess starch, which can make your broth cloudy and gummy. Don't skip the rock sugar; it provides a mellow, rounded sweetness that granulated sugar can't quite replicate. If you have time, make the broth a day in advance; the flavors deepen significantly overnight in the fridge.

🍽️ Serving Suggestions

Serve with a side platter of fresh Thai basil, bean sprouts, and lime wedges for guests to customize their bowls. A small dish of Sriracha mixed with Hoisin sauce is perfect for dipping the meat slices. Pair with a refreshing Vietnamese Iced Coffee (made with coconut milk for a dairy-free version) or a crisp Jasmine tea. For an extra kick, add thinly sliced bird's eye chilies to the garnish plate. A side of Quẩy (Vietnamese fried dough sticks) is traditional for dipping into the savory broth.