Also available in yellow, red and white, storage onions have multiple layers of thick, dark, papery skin. Storage onions have an intense flavor and a higher percentage of solids. Storage onions are the best choice for savory dishes that require longer cooking times or more flavor. The Color of Onions Onions come in three colors yellow, red, and white. Approximately 88 percent of the crop is devoted to yellow onion production, with about 7 percent red onions and 5 percent white onions.
Yellow onions are full-flavored and are a reliable standby for cooking almost anything.
Yellow onions turn a rich, dark brown when cooked and give French Onion Soup its tangy sweet flavor. The red onion, with its wonderful color, is a good choice for fresh uses or in grilling and char-broiling. White onions are the traditional onion used in classic Mexican cuisine. They have a golden color and sweet flavor when saut ed.