According to the National Onion Association, over 85 percent of the total U.S. onion production is yellow onions. Yellow onions range in size from small, golf-ball size to larger ones that are about the size of a softball. This is a versatile onion that often has thick layers and becomes sweeter the longer it is cooked.
Red onions are typically stronger than yellow onions and make up roughly 8 percent of the total U.S. onion production. This type features a bright color and is served raw in salsas and sandwiches.Learn more about Fruits & Veggies