The citrus flavor of oranges brightens many dishes from main dishes to desserts. Because they are high in vitamin C, oranges are a healthy food to cook with. Used in a marinade or sauce, oranges add a sweet-tart flavor to meat, seafood and tofu. Oranges are also a versatile ingredient in desserts, as they pair well with sweet spices and chocolate. Enjoy Chicken with Honey-Orange Sauce for a flavorful weeknight dinner or enjoy Cranberry-Orange-Nut Cookies for a satisfying sweet snack.