makes enough marinade for 2–3 pounds of pork; adapted from VIetnamese Home Cooking by Charles Phan
Combine the sugar, fish sauce, lemongrass, shallot or onion, garlic, chile, and black pepper in a bowl and whisk until sugar dissolves.
Place pork in a bowl, pour marinade over, and allow to marinate at room temperature for 1 to 2 hours. (Optionally refrigerate overnight. Bring pork to room temperature before grilling.)
Preheat grill and skewer the marinated pork. Cook until pork begins to caramelize and is cooked through, about 10 minutes total, internal temperature target 145°F.
Serve with herbs, lime wedges, rice, and nuoc cham dipping sauce.