Cochinita pibil estilo yucateca
pork (cut into pieces, preferably lean) • achiote paste • lime juice (120 ml) • orange juice (240 ml) • large banana leaves • vegetable oil or melted lard (120 ml) • habanero or manzano peppers • chopped red onion (about 320 grams) • lime juice (240 ml) • orange juice (240 ml) • salt