1. Cut ginger in strips. Shred coriander stem and leaves separately. Cut king oyster mushroom in slices. Cut tomato in wedges.
2. Cut chicken thigh in thick strips and then cut in chunks. Marinate chicken with marinade. Heat the oil, pan fry chicken then put in ginger, coriander stem and red curry paste. Put in 1 tablespoon of chicken broth and stir fry.
3. Put in tomato and 1L of chicken broth. Cover the lid and cook in mid-heat for 8 minutes. Put in salt and sugar. Then put in king oyster mushroom, coconut milk and coriander.