1.Cut gai lan into 6cm lengths. Heat half of peanut oil in a wok or large frying pan on high. Reduce heat to medium. Stir-fry gai lan for 1-2 minutes, until bright green. Set aside.
2.Heat remaining peanut oil in wok on high. Stir-fry chilli for 30 seconds, until fragrant. Add ginger. Stir-fry for 30 seconds, until fragrant. Add pork and stir-fry for 3-4 minutes, until browned.
3.Combine stock, shaoxing wine, vinegar, soy sauce and sugar. Add to wok and stir-fry for 1 minute, until combined. Return gai lan to wok and stir-fly for 2-3 minutes, until liquid is almost evaporated. Remove from heat. Stir in sesame oil. Top with green onion and serve with rice.
If you’re not fond of pork, you could replace it with beef, chicken or turkey mince, if you like.