Heat a little oil in a pot, saute garlic, onion; add lechon, crushed peppercorns, sugar, soy sauce, vinegar, banana blossoms.
Stir and add a little water about 1/3-1/2 cup. Let it boil over high heat then lower heat to medium low and let the mixture simmer for about half an hour.
Add the liver spread to thicken the sauce, add more water if you want the consistency thinner or a little runny and simmer some more if you want a thick sauce.