Store onions in a cool dry place and out of direct sunlight. The humidity in most home refrigerators is too high for onions, so it’s best to store them out of the refrigerator. Do your best to keep an eye on your onions. If you notice them starting to sprout or form a bad spot…use them!
Cipollini onions are a special onion that have a more flattened shape and are known for their higher natural sugar content in comparison to other storage onion.
Cipollini onions are at their best when slowly roasted to develop these natural sugars, leaving them silky, soft and so sweet they’ll melt in your mouth. This is not an onion you want to chop up— it’s one to be featured whole in soups, side dishes, roasted alongside beef, pork or chicken, or on kebobs. Roasted cipollini onions can be served as a side dish on their own— flavored with balsamic vinegar, soy sauce, marinade, or simply tossed with olive oil or butter and salt and pepper. While I think this onion is best roasted, you can also boil or braise them. They add flavor and color when braised in the cooking liquid of pot roast or pork roast along with other root vegetables. Smaller cipollini onions can also be added to soups or stews.
As with any other onion, the papery skin needs to be removed prior to cooking. They are kind of challenging to peel by hand without peeling off an outer layer of onion flesh. There is a trick to making them easier to peel. The first step is to trim the stem and root ends with a paring knife. Next, pour boiling water over them and let them set for 5-10 minutes. This helps loosen the skin and you should be able to slip it off easily. Now the onions are ready to be used as you wish.