Ngọc Biển Cá Chẽm Kho Nước Dừa Sen Vàng: Emerald Sea Barramundi Braised in Golden Coconut Water with Lotus Stem
Embark on a culinary journey to the vibrant Mekong Delta with this exquisite Ngọc Biển Cá Chẽm Kho Nước Dừa Sen Vàng. This dish presents a masterful elevation of the beloved Vietnamese 'kho' (braised) technique, featuring succulent fillets of Barramundi, glistening like emeralds from the sea, gently simmered in a shimmering, golden caramel sauce. Infused with the delicate sweetness of young coconut water and the aromatic warmth of fresh ginger and shallots, each bite is a symphony of savory, sweet, and umami notes. The tender fish, flaking effortlessly, is beautifully complemented by the refreshing, crisp texture of blanched lotus stems, adding an unexpected depth and a delightful counterpoint. Garnished with vibrant green onions and fiery chilies, this dish is a testament to the nuanced balance and sophisticated simplicity of Vietnamese gastronomy, a true jewel for the senses.

Gourmet Ingredients
Check ingredients off as you assemble them.
- Barramundi fillets1 kg (about 4 fillets, skin on or off, boneless)
- Fresh young coconut water500 ml (from 2-3 young coconuts)
- Granulated sugar3 tablespoons
- Premium fish sauce6 tablespoons
- Fresh ginger60 g, half thinly sliced, half julienned for garnish
- Shallots4 large, thinly sliced
- Garlic4 cloves, minced
- Black pepper1 teaspoon, freshly ground
- Green onions4 stalks, white and light green parts chopped, dark green parts julienned for garnish
- Red bird's eye chilies2 , thinly sliced (optional, for garnish)
- Lotus stem (Ngó Sen)200 g, peeled and cut into 5cm pieces
- Vegetable oil2 tablespoons
- Cilantro0.25 cup, fresh leaves for garnish
Method of Preparation
Follow these step-by-step instructions carefully.
- 1Step 1
Rinse the barramundi fillets under cold water and pat them thoroughly dry with paper towels. Cut each fillet into 2-3 large portions. In a bowl, gently rub the fish with 2 tablespoons of fish sauce, 1/2 teaspoon of black pepper, and the thinly sliced ginger. Let marinate for at least 20 minutes at room temperature.
- 2Step 2
Bring a pot of lightly salted water to a boil. Add the lotus stem pieces and blanch for 1-2 minutes until slightly tender-crisp. Immediately drain and plunge into an ice bath to stop cooking and preserve crispness. Drain well and set aside.
- 3Step 3
In a large, heavy-bottomed clay pot or Dutch oven, heat 2 tablespoons of sugar over medium-low heat. Stir constantly until the sugar melts and turns into a deep amber-brown caramel. Be careful not to burn it. Immediately remove from heat and carefully add 2 tablespoons of hot water (this will prevent it from seizing and make it easier to mix, stand back as it will bubble vigorously). Stir until smooth and set aside.
- 4Step 4
In the same pot (or a separate pan if caramel was made elsewhere), heat the vegetable oil over medium heat. Add the sliced shallots and minced garlic, sauté until fragrant and lightly golden, about 2-3 minutes.
- 5Step 5
Gently place the marinated barramundi fillets into the pot, skin-side down first if applicable. Sear for 1-2 minutes per side until lightly golden.
- 6Step 6
Pour in the prepared caramel sauce, the remaining 4 tablespoons of fish sauce, the young coconut water, and the chopped white and light green parts of the green onions. Bring the liquid to a gentle simmer. Reduce the heat to low, cover, and braise for 20 minutes, or until the fish is cooked through and flaky, gently basting occasionally.
- 7Step 7
After 20 minutes, gently add the blanched lotus stem pieces to the pot, nestling them among the fish. Continue to simmer, uncovered, for another 5-10 minutes, allowing the flavors to meld and the sauce to slightly reduce and thicken.
- 8Step 8
Taste and adjust seasoning if necessary (add more fish sauce for saltiness, or a pinch of sugar for sweetness). Remove from heat. Garnish generously with julienned ginger, julienned green onions, sliced red chilies (if using), and fresh cilantro leaves. Serve immediately with steamed jasmine rice.
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Recipe Details
Cost Indicator
Standard ingredient budget. Perfect for weekend family dinners.