Set out a scale and the equipment for Ca kho to. Heat to 325°F / 163°C in the oven, or a quiet simmer on the stove and give it 5 minutes so the surface is actually hot. Weigh white fish fillet, fish sauce, granulated sugar, black pepper, shallot, thai chili, water, scallion, kosher salt, neutral oil. Ca kho to is cooked in South as its own plate, not as a copy of a restaurant menu. Caramelize the sugar to a deep amber, add the fish and fish sauce, and braise covered until the sauce is dark and sticky. Amounts are for 4 from foods this library can count.