1Combine sesame seeds and salt in a small bowl.
2Combine pork, spring onions, lemongrass, fish sauce, oyster sauce, sugar, honey, pepper and oil in a mixing bowl. Cover with plastic wrap and marinate overnight in the refrigerator.
3Thread the pork onto the pre-soaked bamboo skewers. Cook on a pre-heated barbecue or grill pan for about 3 mins or until brown and cooked.
4Serve with the sesame salt and watercress, if desired.
Photo: Bauer/Ian Wallace