If button onions have turned up in a recipe or caught your eye at the store, here's what you need to use them with confidence and how to choose them, cook them, store them, what to substitute, and 2 recipes to try them in.
Button onions are small whole onions cooked whole instead of chopped, the same little onions sold as pearl and boiling onions. The names mostly track size, with button and pearl at the tiny end.
You use them for the way they hold their shape. Simmered whole in a stew or glazed in butter, they turn sweet and tender while staying intact, the small glossy spheres you see in a classic braise.
Peeling the tiny things is the only real fuss, so blanch them for about 30 seconds, shock them cold, and slip off the skins. Frozen pre-peeled onions skip the job entirely.
Since these are the same onion under another label, the full details sit in one place. See pearl onions for cooking and buying, and the onions hub for the rest.
There are 2 recipes that contain this ingredient.
Ale-poached salmon trout with butter-tossed button onions, mushrooms, and carrots in a rich reduced ale sauce. A classic Irish monastery-style fish dish with rustic elegance.
Microwave-braised tuna steaks studded with garlic slivers, simmered with pearl onions in red wine, and served on wilted spinach with a tomato-thyme sauce.