Clean the pork, put it in cold water, cook over high heat for 20 minutes. If no more blood comes out under pressure, remove it. After cooling, cut into fine slices. Cut the bell pepper into pieces. Peel the garlic cloves and cut into small pieces.
Heat the oil in the wok, stir-fry the meat slices until the rind contracts. Remove. Put the peppers in the wok in the same way and stir for a while. Put the sauces, the broth and the sugar in the wok, add the garlic, and finally add the meat again, stir briefly again. Serve.