Cut the pork riblets into individual bite sized pieces in-between the bone.
Place the riblets into a pot of boiling water for 3 minutes. This will allow the scum and other impurities to float to the top.
Drain the riblets and run under cold water, individually washing each riblets of any scum film.
In a large bowl, mix together the shallots, garlic, pork bouillon, fish sauce, black pepper, and 1 tbsp of sugar.
Add in the riblets, among sure they are evenly coated with the marinade. Marinate for at least 2 hours, preferably overnight.
In a large sauce pan over medium heat, add 2 tbsp of sugar.
Constantly stir the sugar until it starts to caramelize. Make sure it doesn't burn.
Stir in the marinated riblets with all of the juices and marinade. Add 1 cup of coconut water.
Bring to a boil. Cover. Reduce the heat to low. Simmer for 30 minutes.
After the 30 minutes is up, uncover the sauce pan and simmer for at least another 20 minutes, allowing the sauce to thicken. Garnish with green onion.
Enjoy with a side of chili oil stir fried rice noodles.