How to harvest giant oysters to sell at the market - and cook oyster porridge for the kids to eat
How to harvest giant oysters to sell at the market - and cook oyster porridge for the kids to eat is a easy Vietnamese recipe that serves 3. 350 calories per serving. Recipe by Chúc Thị Dương on YouTube.
Prep: 20 min | Cook: 30 min | Total: 1 hr 5 min
Cost: $17.96 total, $5.99 per serving
Ingredients
- 1 kg Fresh Cá Chay (freshwater fish) (cleaned, scales removed, gutted)
- 2 L Water (for boiling)
- 2 tbsp Kosher Salt (for marinating and seasoning)
- 30 g Fresh Ginger (thinly sliced)
- 3 stalks Green Onions (cut into 2‑inch pieces)
- 2 tbsp Fish Sauce (adjust to taste)
- 1 tsp Sugar (balances saltiness)
- 1 tbsp Lime Juice (adds brightness at the end)
- 2 tbsp Fresh Cilantro (chopped for garnish)
- 300 g Cooked Rice or Vermicelli (to serve alongside)
Instructions
Clean and Prepare the Fish
Rinse the cá chay under cold water, remove scales with the back of a knife, gut the fish, and pat dry. Slice the fish into 3‑4 large pieces for even cooking.
Time: PT5M
Marinate the Fish Overnight (Optional)
Place the fish pieces in a bowl, sprinkle with 1 tbsp salt, add sliced ginger, and cover. Refrigerate for at least 2 hours or overnight for deeper flavor.
Time: PT2H
Prepare the Broth
In a large pot, bring 2 L water to a gentle boil. Add the remaining 1 tbsp salt, ginger slices, and green onion pieces. Let simmer for 5 minutes to infuse the broth.
Time: PT5M
Temperature: 100°C
Cook the Fish
Add the marinated fish pieces to the simmering broth. Reduce heat to low and cook for 12‑15 minutes, or until the flesh flakes easily with a fork.
Time: PT15M
Temperature: 90°C
Season the Soup
Stir in fish sauce, sugar, and lime juice. Taste and adjust salt or fish sauce as needed. Remove the ginger and onion pieces if desired.
Time: PT3M
Serve
Ladle the hot broth and fish into serving bowls. Garnish with chopped cilantro. Serve immediately with steamed rice or vermicelli on the side.
Time: PT2M
Temperature: hot
Nutrition Facts
- Calories
- 350
- Protein
- 30 g
- Carbohydrates
- 30 g
- Fat
- 10 g
- Fiber
- 1 g
Dietary info: Pescatarian, Gluten‑Free (if using gluten‑free fish sauce)
Allergens: Fish
Ingredient Substitutions
- Instead of Fresh Cá Chay (freshwater fish): Tilapia, Catfish
- Instead of Kosher Salt: Sea salt
- Instead of Fresh Ginger: Galangal
- Instead of Fish Sauce: Soy sauce (for veg)
- Instead of Sugar: Honey
- Instead of Lime Juice: Rice vinegar
- Instead of Fresh Cilantro: Thai basil
- Instead of Cooked Rice or Vermicelli: Steamed rice noodles
Equipment Needed
- Large Pot
- Cutting Board
- Sharp Knife
- Colander (optional)
- Measuring Spoons
- Serving Bowls
Critical Steps — Do Not Skip
- Cleaning the fish thoroughly to remove scales and guts
- Marinating the fish to enhance flavor
- Cooking the fish at low simmer to keep it tender
Chef Tips from the Video
- Use the freshest cá chay you can find; a firm flesh indicates good quality.
- Add a few slices of lemongrass to the broth for an extra aromatic note if desired.
Troubleshooting
The broth is cloudy
Skim the surface gently with a spoon as it begins to boil; this removes impurities.
Fish becomes tough
Cook at a low simmer and remove the fish as soon as it flakes easily; over‑cooking makes it rubbery.
Soup is too salty
Add a splash of water and a little sugar to balance; you can also remove some broth and replace with fresh water.
Storage
Refrigerator: Store leftover fish and broth in airtight containers for up to 2 days.
Freezer: Freeze the cooked fish pieces (without broth) for up to 1 month.
Room temperature: Do not leave at room temperature for more than 2 hours.
Make-Ahead Tips
- Marinate the fish overnight for deeper flavor; the broth can be prepared a few hours ahead and reheated before serving.
Frequently Asked Questions
What is the cultural significance and history of boiled freshwater fish (cá chay) in Vietnamese cuisine?
Boiled freshwater fish, known as cá chay, is a humble home‑cooked staple in Vietnam, especially in rural areas where river fish are abundant. It reflects the Vietnamese tradition of simple, clean flavors that let the freshness of the fish shine, often served with rice for everyday meals.
What are the traditional regional variations of boiled cá chay in Vietnam?
In the Mekong Delta, the broth may include tamarind for a sour note, while in northern Vietnam, ginger and scallions dominate. Some regions add a splash of fermented shrimp paste for depth, but the core method of gentle boiling remains consistent.
How is boiled cá chay traditionally served in Vietnamese households?
It is typically served hot in a shallow bowl, garnished with fresh cilantro and sliced chilies, alongside steamed jasmine rice or rice vermicelli. The broth is sipped first, then the fish is eaten with rice.
On what occasions is boiled cá chay traditionally prepared in Vietnamese culture?
Cá chay is often cooked for everyday family meals, but it also appears during modest celebrations, such as a simple family gathering or a modest offering during Tet (Lunar New Year) when fresh river fish is abundant.
What makes boiled cá chay special or unique in Vietnamese cuisine?
Its simplicity highlights the natural sweetness of freshwater fish, and the light broth showcases the Vietnamese principle of balance—salty, sour, and aromatic—without heavy sauces.
What are the most common mistakes to avoid when making boiled cá chay?
Common errors include over‑cooking the fish, which makes it rubbery, and boiling the broth too vigorously, which turns it cloudy. Also, neglecting to clean the fish properly can introduce off‑flavors.
Why does this boiled cá chay recipe use a gentle simmer instead of a rolling boil?
A gentle simmer extracts flavor without breaking down the delicate fish fibers, keeping the broth clear and the fish tender. A rolling boil would cause the fish to disintegrate and the broth to become greasy.
Can I make boiled cá chay ahead of time and how should I store it?
Yes, you can prepare the broth and fish up to a day ahead. Cool quickly, refrigerate in airtight containers, and reheat gently before serving. For longer storage, freeze the fish separate from the broth.
What texture and appearance should I look for when the boiled cá chay is done?
The fish should be opaque, flake easily with a fork, and retain a moist, slightly firm texture. The broth should be clear, lightly scented with ginger and green onion, and free of foam.
How do I know when the boiled cá chay is fully cooked?
When a fork or chopsticks slides into the thickest part of the fish and the flesh separates cleanly, the fish is done. The internal temperature should reach about 63 °C (145 °F).
What does the YouTube channel Chúc Thị Dương specialize in?
The YouTube channel Chúc Thị Dương focuses on everyday Vietnamese home cooking, showcasing simple, budget‑friendly recipes and market‑to‑table techniques that reflect traditional family meals.
How does the YouTube channel Chúc Thị Dương's approach to Vietnamese cooking differ from other Vietnamese cooking channels?
Chúc Thị Dương emphasizes real‑world market trips, candid dialogue, and unfiltered cooking steps, often highlighting the raw, unpolished process of sourcing and preparing ingredients, unlike more polished, studio‑styled channels.
Last updated: August 28, 2026
