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VietnameseMain
Easy Cá Kho Tộ (Vietnamese Caramelized Clay Pot Fish)
Cá kho tộ is the kind of recipe that makes rice disappear. It's a braise built on a caramel base — sugar cooked until it darkens and turns faintly bitter, then hit with fish sauce, coconut water, and fish that soaks up the whole thing as it reduces into a thick, lacquered glaze. The fish comes out dark, glossy, and intensely savoury, with a sweetness that's kept in check by the salt in the fish sauce and the slight bitterness in the caramel. Everything about it is designed to be eaten with a lot of plain steamed rice. Catfish is the traditional choice in southern Vietnam, where the dish is most popular — it holds together well in a braise and has enough fat to survive the heat without drying out. Salmon is a widely used substitute and works very well. The clay pot (tộ) gives the dish its name; the porous clay distributes heat slowly and evenly. A heavy cast-iron skillet or small Dutch oven is the best substitute at home. The technique of building the caramel first is non-negotiable. Skip it and the dish is just fish in sweet-salty sauce — flat in comparison. The caramel adds depth, faint bitterness, and the colour that makes the glaze look right. Coconut water helps the braising liquid stay loose while it reduces; it's sold in cans in Asian grocery stores and many supermarkets. Serve in the pot at the table.
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Instructions
- 1
Pat the fish portions dry with paper towel. Season lightly with salt and black pepper and set aside.
- 2
In a clay pot, small Dutch oven, or heavy skillet over medium heat, combine the sugar and water. Cook without stirring for 4–6 minutes until the sugar has dissolved, bubbled, and turned a deep amber — the colour of strong tea. Watch it closely; it moves from amber to burnt very quickly. Swirl the pan rather than stirring to prevent crystallisation.
- 3
As soon as the caramel is deep amber, carefully add the fish sauce — it will spit and bubble hard. Stir quickly, then immediately add the coconut water, shallots, garlic, and ginger. Stir well. If the caramel seizes into a solid lump, keep stirring over the heat and it will dissolve back into the liquid.
- 4
Bring to a simmer. Nestle the fish portions into the pan in a single layer. Spoon the braising liquid over them. Add the sliced chilli if using.
- 5
Braise uncovered over medium-low heat for 20–25 minutes, basting the fish with the reducing liquid every 5 minutes. Turn the fish gently once, halfway through, if the pieces are thick. The liquid will reduce steadily and thicken into a glossy glaze.
- 6
When the liquid has reduced to a thick coating that pools only at the base of the pan, scatter the spring onions over the top and let them wilt for 1 minute. Garnish with coriander. Serve directly in the pot with bowls of steamed jasmine rice alongside.
