2. First, cut the pork belly into cubes, then clean it, put it in a pot with cold water, add onion, ginger and cooking wine, blanch for 3 minutes, remove and drain the water for later use. Pour a little water into the pot, add rock sugar, bring it to a boil over high fire, boil the rock sugar and melt it, then add 2 spoonfuls of oil, stir-fry over low heat until the rock sugar becomes darker. Quickly pour pork belly and stir-fry, stir-fry and color, add soy sauce and soy sauce and stir-fry and color, and then cook a proper amount of cooking wine. Then add onion ginger, star anise, fragrant leaves and cinnamon, pour in hot water, boil over high fire, and simmer over low heat 1 hour. Finally, add some salt to taste, collect the juice on high fire, and then turn off the heat and go out of the pot.