Heat oil in a wok over high heat.

Add onions and garlic. Cook until onions are translucent.

Add pork belly and cook until light brown in color.

Add vinegar and bring to a boil

Add soy sauce and water. Bring to a boil again. Then lower heat and cover the wok and simmer for about 10 minutes until pork is fork tender.

Add pepper to taste.

Increase heat to high and add Kangkong stalks. Cook for another 2 minutes.

Add Kangkong leaves and cook for another 2 minutes.

Remove from heat and transfer to a serving plate. Garnish with fried garlic bits