Combine the pork shoulder and belly with garlic, cumin, coriander, salt, pepper, orange juice, and lime juice. Cover and refrigerate for 8 to 24 hours.
Heat the oven to 325 F (165 C). Arrange the pork in a covered roasting pan, keeping the belly skin facing up.
Roast and Cook Rice:
Roast covered for 2 hours. Uncover and continue roasting for 60 to 90 minutes until the pork is tender and the belly skin is crisp. Transfer the skin to a board and rest the meat.
Meanwhile, cook the onion and scallions in oil for 5 minutes. Stir in rice, cumin, turmeric, salt, and stock. Cover and cook gently for 16 minutes, then rest for 10 minutes and fold in the peas.
Combine:
Chop the pork into irregular pieces and fold it, along with 1 cup of defatted roasting juices, into the rice.
Break the crisp skin into shards. Spoon lechona onto plates, top with skin, and serve with small arepas.
Notes
This practical home version recreates the flavors of whole-pig lechona in a covered roasting pan.
If the skin needs more crisping, place it alone on a tray under the broiler for 1 to 2 minutes, watching closely.