How To Make Bun Thit Nuong
1. Whisk 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 into pieces.
3. Add the pork to the marinade and let it rest for 30 minutes or for up to 24 hours.
4. Remove the pork slices from the marinade, and place in single layer in the air fryer basket.