Caramelize the sugar. Over medium heat, sprinkle white sugar into your pan or pot. Let it melt and bubble up until golden. Give the pan a gentle swirl.
Add your slices of ginger and crushed garlic. Sizzle until they release their aroma, about 10 seconds.
Toss in the pork belly. Sear until all sides are saucy.
Pour in water, add salt, dark soy sauce, and oyster sauce. Close the lid.
Once boiling, gently slide in the hard-boiled eggs, giving everything a good, gentle stir.
Close the lid, turn down the heat to a low simmer, and let everything meld and thicken for about 45 minutes. Serve immediately.