Pour water in a pot and boil.
Add salt and whole pepper corn.
Put-in the pig's ears and pork belly, then simmer until tender (about 30 minutes to 1 hour).
Pour cooking oil on a separate pan and allow to heat.
When the oil is hot enough, deep-fry the tofu until color turns golden brown and outer texture is somewhat crispy.
Cube the fried tofu and slice the boiled pig's ears and pork belly into bite-sized pieces then set aside.
Heat the saucepan and pour-in the vinegar and soy sauce and then boil.
Add the sugar and stir, then turn-off the heat.
Allow the temperature to cool down then add the onions, green onions, and crushed red pepper. Transfer the sauce in a serving bowl.
Place the sliced meat and tofu in a serving plate with the bowl of sauce by the side