Sweet and Sour Pork (咕噜肉)

Ingredients:

• 500g Pork with fats (I get the butcher to give me the cut of meat for this)
• 1 yellow capsicum , sliced into wedges 
• 1 red capsicum, sliced into wedges 
• 1 Japanese cucumber, cut into pieces 
• 1 yellow onion, cut into wedges 

Sweet and sour sauce:

• 1 tbsp plum sauce
•  3 tbsp tomato sauce
• 1 tbsp chili sauce
• 1/2 tbsp sugar
• 1 tsp salt
• 1/2 oyster sauce
• 100ml water

Method:

1. Cut Pork into 1/2 inches thick and pound with back of knife till tender. Then sliced into cubes. 
2. Add in marinade: 1/2 tsp salt, 1/2 tsp sugar, 1 tsp oyster sauce, 1/2 tsp sesame oil, 1 egg, 1 tbsp cooking wine, 1tsp bicarbonate of soda, 3 tbsp water. Marinate for an hour or longer.
3. Mix 1.5 cups of sweet potato flour and 0.5 cup of plain flour together. Place mixed flour into a ziplock bag. Transfer marinated pork cubes into ziplock bag, zipped and shake to coat pork cubes with flour mixture. This method helps to coat the pork cubes well and won’t dirty your hands or tabletop.  
4. Heat up oil in pot. Once oil is hot, remove pork cubes from flour and deep fry until golden brown. Remove and set aside. Once all pork cubes are done, increase heat in pot and do a second frying to crisp the pork cubes. 
5. Prepare sauce in a bowl. 
6. Heat wok with 1tbsp oil. Stirfry onion for a minute, add capsicum, cucumber or other vegetables. Fry till fragrant. Pour in sauce and bring to a boil. Add a little cornflour water to thickened mixture. Add deep fried pork and mix well. Dish up and serve hot

Note:
- You can have other variations to the sides, e.g. Green capsicum, pineapples or tomatoes
- To ensure pork is crispy, you can do double-frying before adding to cook with sauce.
- Normally, I'll set aside some sauce and deep fried pork cubes separately for my hubby who have his dinner later. In this way, the Pork will not be cold and soggy.