store onions

Do Red Onions Turn Black When Cooked?

by

Do Red Onions Turn Black When Cooked? Do red onions turn black when cooked? Red onions—as well as other red produce, including cabbage and cherries—are rich in pigments called anthocyanins. When they’re cooked with acid, their color intensifies, but when combined with an alkaline component, they can turn a startling bluish-green color. What happens when