Sear the vegetables: In a bit of oil, sear the potatoes and bell peppers over medium-high heat. Season lightly with salt. Set aside.
Sear the liver: Over high heat, sear the liver for about 2 minutes. Season with salt, then add the vinegar. Let it sizzle briefly, then set aside.
Sear the pork: In the same pan, sear the pork until browned. Season with salt, then push to the side.
Sauté the aromatics: Lower heat to medium. Sauté the onion, garlic, and ginger until softened and fragrant. Add the bay leaves, then mix with the pork.
Build the sauce: Add 2 cups of water, soy sauce, oyster/fish sauce, and sugar. Bring to a boil. Lower heat, cover, and simmer 20–30 mins until pork is tender.
Add the liver: Return liver to the pan. Simmer for 3 minutes until just cooked through.
Add the seared vegetables: Stir in the seared veggies and simmer for 2-3 minutes. Adjust the seasoning. Add water if too thick, or simmer longer to reduce the liquid.
Add the peas and chilies: Stir in the peas and chilies to taste. Cook for another minute, just until heated through. Turn off the heat, remove the bay leaves, and serve warm.