01 - Combine ground pork with half the minced garlic and shallots, 1 tbsp fish sauce, 1 tbsp sugar, oyster sauce, soy sauce, black pepper, and oil. Mix thoroughly and shape into small 2-3 cm thick patties.
02 - Toss pork slices with remaining garlic, shallots, fish sauce, sugar, and oil. Let both patties and slices marinate for at least 15 minutes.
03 - Dissolve sugar in warm water. Stir in fish sauce, rice vinegar or lime juice, garlic, chili, and carrot if using. Adjust to achieve balanced sweet, salty, sour, and spicy flavors.
04 - Prepare vermicelli according to package directions. Drain thoroughly and rinse with cold water to halt cooking process.
05 - Preheat grill or grill pan over medium-high heat. Grill patties and slices for 3-4 minutes per side until cooked through and caramelized.
06 - Arrange noodles, herbs, lettuce, bean sprouts, and cucumber on serving plates.
07 - Present grilled pork hot alongside noodles and fresh herbs with dipping sauce on the side. Diners combine components in their bowls and dip into sauce.