How To Make Bun Thit Nuong
1. Whisk together the onions, sugar, soy sauce, oil, garlic, fish sauce, lemongrass, and pepper.
2. Thinly slice the pork shoulder into 1/2 in slices, and then cut crossways into 4-inch pieces.
3. Add the pork to the marinade and let it rest for 30 minutes or for up to 24 hours.