Cut Pork Tenderloin into bite sizes.
Put in a small bowl, add salt, white pepper powder, ginger sauce and mix thoroughly.
Put aside to marinade for around 10 minutes.
In a small bowl, mix all the ingredients for stir-fry sauce.
Add egg whites firstly and then add cornstarch.
Grasp with hand until the shreds are coated evenly.
In a small bowl, add 1 tablespoon of cornstarch and 1 tablespoon of water and stir in one direction to make the coating. Coat each pork before frying.
Heat up cooking oil in a wok until you can see the waves on the surface. Put the coated pork in. Deep-fry quickly to firm the texture.
Remove the pork out and drain.
Then re-deep-fry the pork again quickly around 30 seconds. Transfer the pork out and drain.
Leave around 1 teaspoon of cooking oil in a wok and then add the stir-fry sauce in to cook around 2 minutes.
Then return the deep-fried pork into a stir-fry for 1~2 minutes, add pineapple, bell pepper and garnish sesame seeds in; mix thoroughly to make sure the pork is coated evenly.
Transfer to a serving plate.
Serve with hot rice.