The dish existed long before the sizzling version most people know today — an 18th-century Kapampangan dictionary describes 'sisig' simply as a sour green-papaya salad, centuries before anyone chopped pork into it.
Pig ears and jowls are boiled, grilled, then chopped fine and tossed with calamansi juice, onions, and chili, served on a blazing-hot sizzling plate that keeps cooking the meat at the table. Angeles City stalls often crack a raw egg over the top to stir in as it sizzles.