Onions are a staple in kitchens worldwide, known for their distinct flavor and versatility in cooking. They can range from sweet to pungent, depending on the variety (like yellow, red, or white onions). When raw, onions have a sharp, tangy taste, but when cooked, they often become sweet and mellow, making them perfect for adding depth to a wide range of dishes like soups, stews, salads, and stir-fries. Onions also have health benefits, including being rich in antioxidants and vitamins.