The yellow onion, originating from the Vega de Aranjuez in San Martín de la Vega and Ciempozuelos, is a variety of dry onion widely used in cooking. With an intense flavor, it is perfect for roasting, sauces, and various culinary preparations. Its appearance ranges from yellow to brown, and it is available year-round. This onion is known for its versatility, used as a base in sautéing, stews, creams, and even fried or roasted. For storage, it is essential to follow certain tricks to prolong its shelf life: remove the outer layer, store in a cool, dry, and well-ventilated place. Avoid plastic bags as they can accelerate spoilage. If you want to reduce its sharpness when cooking, try blanching them or letting them sit in salt for a few hours.