Pork and pepper in black bean sauce

Black bean sauce is always very tasty. This recipe is very simple and common. I've done it like in the restaurant, the meat is marinated in baking soda and velveted in hot oil before stir fry to ensure the meat is very tender. Colourful and tasty simple dish.For the recipe (enough for 3 - 4)Ingredients:400g pork tenderloin or pork chop, sliced1/2 tsp of bicarb2 tbsp of oyster sauce1 tbsp of