Poach pork belly in water, ginger, and green onion for 20 minutes on low heat to clean and draw out blood.
Soak and clean mustard green with water.
Sauté mustard green with green onion, ginger, and garlic.
Add pork belly back into the pot. Fill the pot (until liquid barely covers the meat) with water, soy sauce, soy paste, and rock sugar. Season to taste here.
Braise in a dutch oven at 175ºF for 12 hours, then 150ºF for 8 hours. 4 hours in simmering water if you’re in a hurry.
Garnish with cilantro as you serve.







