Peel and thinly slice the shallots
Peel and mince the garlic.
Finely slice the chilies.
Heat the cooking oil in a pan.
Saute the garlic, shallots (or onion) with 2/3 of the sliced chilies until softened and aromatic, about two to three minutes.
Pour in the vinegar and soy sauce. Stir in the brown sugar and black pepper, and throw in the bay leaves.
Dump the leftover grilled, rotisserie or fried chicken into the pan. Boil until most of the liquid has been absorbed, about five minutes.
Pour in the lechon sauce. Set the heat to the lowest setting. Cover the pan. Simmer the chicken for 20 minutes. Midway through the cooking, taste the sauce and adjust the seasonings, as needed.
Transfer the cooked paksiw na lechon manok into a serving bowl or individual bowls. Garnish with sliced scallions and the remaining sliced chilies.