Phở Bò (Beef Noodle Soup)
A clear, aromatic broth simmered for four hours with charred ginger and onion and a bundle of toasted spices, poured boiling over raw beef so it cooks in the bowl.
Method
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Cover the bones with cold water, bring to a rolling boil for 10 minutes, then drain and scrub each bone clean. Wash the pot too — this is what makes the broth clear.
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Char the onion and ginger halves directly over a gas flame or under a hot grill for 10 minutes, until blackened in patches. Scrape off the worst of the char.
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Toast the star anise, cinnamon, cloves, coriander seeds, fennel and cardamom in a dry pan for 2 minutes, then tie them in muslin.
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Return the clean bones to the pot with the brisket, charred aromatics, spice bundle and 5 litres of cold water.
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Bring to a bare simmer — never a boil — and cook uncovered for 4 hours, skimming any foam in the first 30 minutes.
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Remove the brisket after 90 minutes, cool it in cold water and slice thinly.
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Strain the broth through muslin, then season with the fish sauce, rock sugar and salt. It should taste clean, sweet and deeply savoury.
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Soak or cook the rice noodles according to the packet, then divide between deep warmed bowls.
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Lay the raw sirloin and sliced brisket over the noodles, then ladle the boiling broth over — it will cook the raw beef in seconds.
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Serve with the herbs, beansprouts, lime, chilli and sliced onion on a platter for each person to add as they like.
Chef’s Tips
- The broth must never boil after the initial parboil. A rolling boil emulsifies fat and turns it cloudy.
- The broth needs to be genuinely boiling when it hits the bowl, or the raw beef will not cook.
- Rock sugar rather than granulated gives a cleaner sweetness and a clearer broth.
Pairing Suggestions
- Vietnamese iced coffee afterwards, or a cold lager
- The herb platter is the accompaniment
- Finish with fresh lychees
Storage & Reheating
The broth keeps 4 days refrigerated and freezes 6 months — freeze it in portions and phở becomes a 15-minute meal.
Nutritional Highlights
Per serving, calculated from the ingredient list. Treat these as an estimate — brands and cuts vary.