For an authentic taste of Hong Kong-style sweet and sour chicken, use a food processor to create a traditional recipe that captures the flavors of this classic dish. Marinate the chicken in a mixture of soy sauce, ginger, and garlic for at least 30 minutes to infuse it with flavor. The batter can be made with a combination of flour, cornstarch, and baking powder for a light and crispy coating. Deep-fry the chicken until golden brown and crispy. The sweet and sour sauce is made with a blend of pineapple juice, ketchup, vinegar, and sugar, and then thickened with cornstarch. Toss the crispy chicken in the sauce and serve it with steamed rice for an authentic Hong Kong-style meal.