Onion petals refer to the individual layers or segments of an onion, a common vegetable used in cooking. When an onion is cut, these layers can be separated, resembling petals of a flower. The structure of onion petals contributes to their texture and flavor, making them a versatile ingredient in various dishes. In culinary applications, onion petals can be used in salads, stir-fries, or as a garnish. They can be eaten raw or cooked, and their taste can range from mild to pungent, depending on the type of onion, such as red onions or yellow onions.