Chicken hot and sour is a popular Chinese soup that is both spicy and tangy. It typically contains chicken cooked in a flavorful broth made with vinegar, soy sauce, chili paste, and other seasonings. The soup is often thickened with cornstarch to give it a velvety texture, and it can be garnished with green onions, cilantro, and a drizzle of sesame oil for added flavor. Chicken hot and sour is a delicious and satisfying dish that can be enjoyed as an appetizer or a main course.