Preheat the oven to 350 degrees F (180 degrees C).
Sprinkle the pork with salt and pepper. Heat the oil in a heavy ovenproof skillet over high heat. Sear the pork on all sides, about 5 minutes per side. Add the leeks, garlic, ginger and lemongrass and cook, stirring, until fragrant, 2 to 3 minutes.
Add the veal stock, coconut milk, soy sauce, vinegar and dried chile. Cover the skillet and cook in the oven until the pork is fork-tender, about 3 hours.
Transfer the pork to a platter and sprinkle with scallions. Drizzle with the pan juices. Serve with Fried Rice.
Pulse the sambal oelek, garlic, shallots and lime juice in a food processor until coarsely pureed.
Heat the oil in a large saucepan over medium heat and saute the celery and leeks for about 2 minutes. Add the sambal mixture and cook for 1 minute. Add the rice and soy sauce and saute until well coated and heated through, about 5 minutes.
Remove from the heat and stir in the chives, cilantro and parsley. Season with salt and pepper.