Pork in sweet and sour sauce with pineapples

First you need to cut the meat into narrow strips, as for beef stroganoff. Then put them in a convenient bowl and pour soy sauce. Pre-mix the sauce with flour and starch so that there are no lumps. Mix the meat with the sauce and leave for ten minutes.
Mix vinegar, sugar and ketchup separately into a homogeneous mass. It will be a sweet and sour sauce.
Now cut carrot and pepper into strips. Pepper can be diced, in principle. Pineapples are also diced. Pour vegetable oil into a frying pan and fry peppers, carrots and pineapples in turn. First, carrots, when it changes color, add pepper. At the end, put pineapples. As soon as everything is ready, transfer the roast to a bowl.
Put the meat in the same pan. And try to make sure that all the pieces are fried at a distance from each other. So that the meat turns out with a beautiful crust. Now add the roast with pineapples to the meat.
Pour sweet and sour sauce over the meat. Turn down the heat and simmer slowly for about ten minutes.
Boiled rice can be used as a side dish, a dish of Chinese cuisine after all.
It is not necessary to pour salt into the food, because it is enough in soy sauce and ketchup!