If you enjoy bold and spicy flavors, this Szechuan sweet and sour chicken recipe is perfect for you. Using a food processor, blend together Szechuan peppercorns, chili peppers, garlic, and other spices to create a fiery marinade for the chicken. The chicken is then stir-fried with bell peppers, onions, and pineapple chunks, and coated in a tangy sweet and sour sauce made with vinegar, soy sauce, and sugar. This dish is sure to satisfy your cravings for spicy and tangy flavors.