- Preheat oven to 325ºF.
- Slice pork belly into 1 inch cubes. Heat a medium cast iron pan over medium-high heat for 3 minutes. Add pork belly to pan and brown for 5 minutes. Flip pork belly using tongs and cook an additional 3-5 minutes.
- While pork belly browns, stir together soy sauce, chicken stock, brown sugar and 5 spice powder in a small bowl. Pour sauce over pork belly and cover with a heavy lid. Transfer to oven and braise for 2 ½ to 3 hours or until pork belly is fork tender. Serve hot garnished with sesame seeds and scallions.