Red onions are known for their vibrant purplish-red skin and mildly sweet, crisp flavor. They add color, crunch, and a zesty bite to salads, burgers, and sandwiches. When eaten raw, they offer a sharp yet refreshing taste, while cooking brings out their natural sweetness and softens their texture. Ideal for grilling, roasting, or pickling, red onions are a versatile ingredient that enhances both the flavor and presentation of any dish.