Cá Kho Tộ
Mekong Delta
You burn sugar on purpose until it is nearly black, then add fish and a heavy pour of fish sauce to the pan. It is one of the most loved home dishes in Vietnam.
Caramel taken to the edge of bitter loses most of its sweetness and becomes a dark, roasty base that tames the funk of fish sauce. Coconut water adds gentle background sweetness as it reduces, and everything tightens into a salty, sticky glaze built to be eaten over plain rice.
Kho means to braise in caramel and fish sauce, and it is a whole category of Vietnamese home cooking applied to pork, eggs, and above all fish. Cá kho tộ, fish braised in a clay pot (the tộ), is most associated with the Mekong Delta, where the classic fish is cá lóc, snakehead, pulled from the rice paddies and canals. The clay pot holds heat and concentrates the sauce, though plenty of cooks make it in a saucepan and only serve it in the pot.
This is everyday food, the salty centerpiece of a home meal alongside a mountain of rice, a light canh soup, and boiled or pickled vegetables. Overseas, catfish steaks became the standard because they are cheap, fatty, and hold together in the braise, and the dish is a fixture on Vietnamese restaurant menus.
Ingredients
- 700 g (about 1.5 lb) catfish steaks, cut 2.5 cm (1 in) thickskin and bone on; snakehead is traditional, mackerel or salmon steaks also work
- 3 tbsp fish sauce
- 1 tbsp sugar, for the marinade
- 2 tbsp sugar, for the caramel
- 1 tbsp neutral oil
- 1 shallot, minced
- 4 cloves garlic, minced
- 240 ml (1 cup) coconut wateror coconut soda such as Coco Rico; plain water plus a pinch of sugar works
- 1 tsp dark or thick soy sauceoptional, deepens the color
- 1-2 Thai chiles, slicedoptional
- 1/2 tsp coarsely ground black pepper
- 2 scallions, sliced
- to serve steamed jasmine ricenot optional in spirit
Method
- Rub the fish steaks with a little salt, rinse, and pat thoroughly dry to remove any surface slime.
- Toss the fish with the fish sauce and 1 tablespoon of sugar and let it sit for 30 minutes.
- Heat the oil and 2 tablespoons of sugar in a clay pot or heavy saute pan over medium heat, swirling occasionally, until the sugar melts and turns a deep amber, the color of strong tea, 3 to 5 minutes.
- Immediately add the shallot and garlic and stir for 15 to 20 seconds until fragrant.
- Lay in the fish with its marinade and turn each piece gently to coat in the caramel.
- Pour in the coconut water, add the chiles and dark soy if using, and bring to a gentle simmer.
- Simmer partially covered over low heat for 15 minutes.
- Carefully flip the steaks, or spoon the sauce over them if they look fragile, and simmer uncovered 10 to 15 minutes more until the liquid reduces to a dark, syrupy glaze.
- Taste and correct with a splash of fish sauce or a pinch of sugar, then grind the black pepper over.
- Rest a few minutes off the heat, scatter with scallions, and bring the pot to the table with plenty of rice.
Cooked it? Say how it went. Tweaks, substitutions, honest verdicts, all welcome.
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