Transfer the pork belly in a pot with water. Simmer for 20minutes on medium heat. Add chicken liver and continue to simmer for 10 minutes. Remove from the pot and grill the pork till golden brown. Chopped in small cubes and set aside.
Soak the bihon in water for 30 minutes. Drain the water and set aside.
Pre-heat a wok with oil. Sauté chopped grilled pork, onions, chili and garlic. Season with liquid seasoning and pepper to taste. Add lemon or calamansi juice. Set aside.
Pre-heat a wok with oil. Sauté onion till soft then add minced garlic. Add carrots, greenbeans, and cabbage. Add pork broth and season it with soy sauce and pepper to taste. Bring to boil then add soaked bihon. Continue to cook till the bihon absorbs the broth.
Transfer the pancit in a platter. Add the sisig and mix it well. Garnish with crushed chcharon and chopped spring onions. Best serve with lemon or calamansi. Enjoy!