Preheat the oven to gas mark 6/400oF/200oC/180oC fan. Pat the chicken breasts until dry with paper towels then season the chicken breasts with white pepper, ginger powder and garlic powder. Place the chicken on a baking tray lined with parchment paper and bake in the oven for 20 - 25 minutes. Once cooked through, remove from the oven and allow to completely cool then shred the chicken longways using a knife.
Make the stir fry sauce by combining the light soy sauce, dark sauce, oyster sauce, sesame oil and brown sugar in a bowl then set the bowl aside. Whisk the eggs together and also set aside.
Add 1 tablespoon of vegetable oil to a wok or a large frying pan and allow to heat on a medium - high heat. Pour in the whisked eggs and allow the eggs to set. Once they have set, begin to break them up into smaller pieces to resemble scrambled eggs. Remove from the pan and set aside on a small plate.
Add 1 tablespoon of vegetable oil to the pan and allow to heat then add the chopped spring onions, chopped garlic and stir fry for 2 minutes. Add in the cooked rice and continue to stir fry for 1 minute then add in the chicken, petit pois and Chinese five spice. Continue to stir fry for 1 minutes then add in the stir fry sauce and combine. Add the eggs back to the pan and continue to stir fry until all the ingredients are combined. Remove from the heat and allow to stand for 2 minutes then serve.