Slice the ginger thinly and separate the white and green parts of the scallions.
In a pot, combine pork belly, scallion whites, ginger, water, and half of your shaoxing wine. Blanch for 5–6 minutes, then remove and rinse pork under cold water.
In a clean pan, melt rock sugar until caramelized.
Add the rinsed pork belly and cook for 5 minutes to caramelize the sides.
Add star anise, chili peppers, bay leaf, cinnamon, ginger, scallion greens, the other half of your shaoxing wine, soy sauces, and water. Bring to a boil.
Cover and simmer for 1½ hours, stirring every 20 minutes to prevent burning.
Remove aromatics and turn heat to high. Reduce until sauce thickens.
Serve over rice and garnish with scallions.
Notes
(1) In order to get the scallions curly like in the photo, thinly slice them lengthwise and shock in ice water for 10 minutes!