Orange Sauce lends that sweet, tangy, and citrusy flavor to your Chinese stir-fry takeout. It has an appealing color and is easy to prepare at home! Also, check out the quick video tutorial attached below for quick recipe guidelines. Orange Sauce adds that sweet-and-sour flavor that is famous in Chinese takeout dishes. It is like sweet and sour sauce , but instead of using pineapple juice, this sauce only has orange juice. It is versatile and it can be added to chicken, beef, and vegetables like cauliflower.