Wash pork jowl or pork cheeks in running water. Put in a colander to drain excess water.
Boil the pork jowl until tender for about 45 minutes. Remove from pot and drain in a colander.
Wash chicken liver and drain. Put in a bowl and season with salt and pepper.
Broil pork jowl and chicken liver then cut into small pieces. You can use an airfryer if you don't want to broil it in a charcoal grill.
Prepare a mixing bowl and combine pork jowl, chicken liver, onions, green chili, salt, black pepper and calamansi juice. Toss until well combined.
Heat sizzling plate on a stove and melt butter. Put the pork sisig and stir gently for a few minutes.
Garnish with red chili peppers and serve with steaming rice!