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1
Combine the pork pieces, coconut water, Vietnamese caramel sauce, fish sauce, and aromatics in a heavy pot. Bring to a gentle simmer over medium heat, skimming any foam that rises. The liquid should be amber and fragrant before you reduce the heat.
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2
Reduce the heat to the lowest setting. Add the whole hard-boiled eggs. Braise uncovered for 1.5–2 hours, turning the pork and eggs occasionally. If the liquid threatens to reduce away before the pork is tender, add more coconut water in small amounts. The eggs will turn mahogany as the braise proceeds.
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3
This is where the dish lives or dies: at the 1.5-hour mark, insert a chopstick or skewer into the thickest piece of pork. If resistance remains, continue the braise regardless of sauce consistency — the pork must reach complete collagen conversion before the liquid is allowed to reduce fully. No resistance means the dish is ready to finish.
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4
Once the pork yields completely to the skewer, allow the liquid to reduce over low heat until it coats the pork and eggs in a glossy, lacquered sauce. The surface should be visibly thick and clingy, not watery.