If you want to recreate the taste of restaurant-style Hong Kong-style sweet and sour chicken at home, you can use a food processor to make a recipe that rivals your favorite takeout. Marinate the chicken in a mixture of soy sauce, ginger, and garlic for maximum 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 can be 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 a restaurant-quality meal.