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Bún Cá Chép (Vietnamese Herb-Broth Tradition)

Name: Bún Cá Chép (Vietnamese Herb-Broth Tradition)
Prep time: 20 min
Cook time: 45 min
Total time: 65 min
Yield: 4 servings
Cuisine: vietnamese-herb-broth
Ingredients: 6 cups filtered water; 1.3 lbs wild-caught catfish or Arctic char fillets, skin-on, pin-boned; 3 large Medjool dates, pitted; 30 ml high-quality fermented fish sauce, gluten-free verified; 3.5 oz fresh turmeric root, sliced thick; 6 stalks lemongrass, bruised and cut into 5 cm pieces; 2 tbsp fresh galangal, sliced; 30 ml avocado oil, divided; 1 large yellow onion, charred over open flame; 4 cloves garlic, smashed; 8.8 oz organic rice vermicelli noodles, soaked per package; 7 oz fresh bean sprouts, rinsed; 1 bunch fresh mint leaves, picked; 1 bunch Thai basil, picked; 4 leaves fresh perilla leaves, torn; 2 limes, cut into wedges

A clear, aromatic Central Vietnamese fish soup featuring wild-caught protein, turmeric-infused broth, and fresh herbs. This farm-fresh adaptation strips out refined sugar and seed oils while amplifying polyphenols through turmeric, lemongrass, and fermented fish sauce.

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Serves

Prep

20 min

Cook

45 min

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Bún Cá Chép (Vietnamese Herb-Broth Tradition) — authentic Vietnamese Herb-Broth recipe from Taste Meridian

Ingredients

Serves

Broth & Fish

6 cupsfiltered water
1.3 lbswild-caught catfish or Arctic char fillets, skin-on, pin-boned
3 largeMedjool dates, pitted
30 mlhigh-quality fermented fish sauce, gluten-free verified
3.5 ozfresh turmeric root, sliced thick
6 stalkslemongrass, bruised and cut into 5 cm pieces
2 tbspfresh galangal, sliced
30 mlavocado oil, divided
1 largeyellow onion, charred over open flame
4 clovesgarlic, smashed

Assembly

8.8 ozorganic rice vermicelli noodles, soaked per package
7 ozfresh bean sprouts, rinsed
1 bunchfresh mint leaves, picked
1 bunchThai basil, picked
4 leavesfresh perilla leaves, torn
2limes, cut into wedges

Equipment

large heavy-bottomed stockpot — maintains steady simmer for clear broth
cast-iron skillet or steel wok — retains heat for searing fish without sticking
fine mesh strainer — removes solids for crystal clear broth
mortar and pestle — crushes aromatics to release essential oils

A little context

Originating from Central Vietnam, Bún Cá Chép traditionally relies on rock sugar and seed oils for frying. We honor the tradition by using Medjool dates for natural sweetness and avocado oil for high-heat searing, preserving the aromatic profile while aligning with longevity standards.

Why this food

The longevity story

The broth delivers curcumin from fresh turmeric root, a potent anti-inflammatory compound, alongside citral from lemongrass which supports digestion. Wild-caught fish provides high-quality omega-3 fatty acids essential for brain health and cellular integrity. Fermented fish sauce contributes umami depth without additives, while the abundance of fresh herbs like perilla and mint adds a spectrum of polyphenols and antioxidants.

Method

01
Prepare the aromatics
Char the yellow onion directly over a gas flame or under a broiler until blackened on all sides. Rinse under cold water to remove charred skin. Bruise the lemongrass stalks with the flat side of a knife to release oils.
02
Build the broth base
In the stockpot, combine filtered water, charred onion, lemongrass, turmeric, galangal, garlic, and dates. Bring to a boil, then reduce heat to low. Simmer uncovered for 30 minutes to extract flavors without clouding the liquid.
03
Season the broth
Strain the broth through a fine mesh strainer into a clean pot. Discard solids. Stir in the fish sauce and 1 tsp of avocado oil. Taste and adjust; it should be savory with a subtle natural sweetness from the dates.
04
Sear the fish
Pat the fish fillets dry and season with sea salt. Heat a cast-iron skillet over medium-high heat with 1 tbsp avocado oil. Sear the fish for 2-3 minutes per side until golden and just cooked through. Remove and flake into large chunks.
05
Cook the noodles
Blanch the rice vermicelli in boiling water for 1-2 minutes until tender but chewy. Drain immediately and rinse under cold water to stop cooking. Toss with a few drops of avocado oil to prevent sticking.
06
Assemble the bowls
Divide noodles among 4 bowls. Top with flaked fish, bean sprouts, and fresh herbs. Ladle the hot broth over the top. Serve immediately with lime wedges on the side.

Pro tips

✦Select wild-caught fish with firm flesh and a clean sea scent; avoid any with a muddy odor.
✦Do not overcook the fish; add it to the bowl raw or seared separately to maintain texture in the hot broth.
✦Fresh turmeric stains everything; wear gloves and use wooden cutting boards when possible.
✦For deeper flavor, char the ginger and lemongrass briefly before adding to the pot.
✦Ensure your fish sauce lists only anchovies, salt, and water to avoid hidden sugars.

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Equipment

Wok →Mortar And Pestle →Mortar →

Specialty ingredients

Fish Sauce →Galangal →Lemongrass →

Substitutions

wild-caught catfish → wild-caught Arctic char or rainbow trout (similar fat profile and flake texture)
fresh galangal → fresh ginger (ginger is more accessible but less peppery)
rice vermicelli → buckwheat soba noodles (adds more fiber and polyphenols, check for 100% buckwheat)

Storage

Store broth and fish separately in glass containers in the fridge for up to 3 days. Noodles and herbs are best fresh but can be prepped 24 hours ahead.

What to serve with it

Hot green tea or jasmine tea to complement the herbal notes
Sparkling water with fresh lime and mint
Dry red wine like Pinot Noir to match the fish fat

FAQ

Can I use canned coconut milk for creaminess?+

Traditional Bún Cá Chép is a clear broth. Adding coconut milk changes the dish to a curry style. For this version, we keep the broth clear to highlight the fresh herbs.

Is fish sauce keto-friendly?+

Most quality fish sauces contain negligible carbs, but check the label for added sugar or molasses. Our recipe uses date syrup for sweetness, keeping the broth low-glycemic.