Cut pork belly into 2 cubes or pieces large enough to put on a grill.
Heat oil in pan. Add garlic, bay leaves and peppercorns. Cook a minute or so.
Add pork belly and brown on all sides. Don't let garlic burn!
Add Tamari and water and let come to a boil. Lower so simmer and cook low and slow till pork is tender. 2-3 hours, checking make sure there is still enough liquid and adding water if necessary.
Add vinegar and boil for 5 minutes or so stirring.
Remove pork from sauce. Place on preheated grill for 2-3 minutes on each side till lightly caramelized. Set aside.
Pour remaining sauce into large cup and de grease reserving fat.
Return fat to dutch oven and add frozen cauliflower rice. Cook for 8 minutes or so.
To plate place cauliflower on large plate, place pork on top ov rice and pour remaining sauce over pork. Sprinkle with cilantro and serve.