This sweet and sour pineapple pork recipe is a classic Chinese dish that combines the tangy flavors of pineapple with tender pieces of pork. The pork is marinated in a mixture of soy sauce, vinegar, and sugar, then stir-fried with pineapple chunks, bell peppers, and onions. The result is a deliciously balanced dish that is both sweet and savory. Serve it over steamed rice for a complete meal that will surely make you fall in love with the flavors of pineapple and pork.