Onions

An onion is a bulb vegetable known for its sharp aroma and flavor, which can range from pungent to sweet depending on the variety. It forms in layered, papery-skinned bulbs that may be white, yellow, red, or purple. When cut, onions release sulfur compounds that can cause eye irritation. They are used worldwide as a foundational ingredient in cooking, adding depth, sweetness, and aroma to dishes. Onions can be eaten raw, sautéed, caramelized, roasted, or pickled.