Add the ingredients of the pork marinade to the pork and mix well and set aside
Make sauce by combining 2 tbsp Chinese spiced vinegar, 1 tbsp sugar, 2 tbsp ketchup, 1 tbsp plum sauce, and ¼ tsp salt in a container and set aside This sauce will not give you the bright red color that you find at most restaurants. Using tomato paste instead of ketchup with make the sauce more red
Make slurry for sauce by combining 1 tsp corn starch with 3 tbsp water in a container and set aside
Combine ½ cup of flour and ½ cup of corn starch and mix together in a bowl. Use 2 tbsp of this mixture and add it to the marinated pork and mix well
Take a piece of pork and roll it around the flour mixture until it’s completely covered, use your hand to squeeze the pork, shape it into a ball somewhat and place on a plate. Repeat for all the pork pieces Giving the pork a bit of a squeeze will help to tighten the meat so that it will retain its juice
Heat oil until it gets to 150˚C or 300˚F, put the pork in and gently move them around to ensure even cooking. Cook for approx. 5 minutes, until the outside batter has a light golden color. Remove from heat and let it rest on a cooling rack
Heat a pan at medium-high heat and add 2 tbsp of oil
Add onions and garlic and fry until onions are slightly soft and put into a bowl for later use. Turn off heat and return to finish frying the pork. Doing this step before frying the pork for the second time will ensure that both the sauce and the pork will be as hot as possible at the time of serving since onions and garlic take a bit more time to soften in the pan
Bring the deep frying oil to 200˚C or 400˚F. Put all the pork back into the oil and fry for another minute or two until the pork becomes a golden-brown color and remove from heat
Heat pan to medium-high and add the already cooked garlic and onions; peppers; chilis; and fruit. Stir-fry for 1 minute
Add the sauce mixture and mix well with the vegetables and fruit
Stir the slurry (before pouring into the pan). Pour slurry into the pan and mix well with the vegetables and fruit. Turn off heat
Add the pork into the pan and stir until all the pork pieces are covered with the sauce
Put everything onto a large plate without having any of the pork stacked on top of each other This will help to prolong the crispiness of the pork