Marinate the minced pork with 1/4 tsp of salt, and rub to distribute it evenly. Turn the pork from bottom to top, and repeat the marination with the other 1/4 tsp of salt. Set aside.
Slice the choy sum stems into 1/2 cm in length. Set aside in a bowl. Roughly slice the choy sum leaves into bitr-sized pieces and set aside in a separate bowl.
Add cooking oil into a wok over medium heat, and let it warm up.
Add the minced garlic and stir fry for 2 minutes or until crispy and golden brown. Remove 2/3 of it from the wok and set aside.
Add the pork into the wok. Stir fry and flatten the lumps for about 45 seconds. Continue to stir fry for about 2 minutes, or until the colour changes to grey.
Add the cut red chilli, coarse black pepper, sesame oil, light soy sauce and oyster sauce. Stir fry for 30 seconds, or until the minced pork is well-mixed.
Add all the choy sum stems and stir fry for 30 seconds. Add water if it is too dry. Fry for another 1.5 minutes, or until the choy sum is just cooked.
Taste and adjust as preferred.
Add the choy sum leaves. Stir fry for 45 seconds, or until soft.
Switch off the heat. Add most of the crispy fried garlic and mix until well-combined.
Garnish with the rest of the crispy fried garlic. Serve with rice and sunny-side-up egg.