Cipollini's are an Italian heirloom variety of onion. Back in the day, it was hard to find these delightful little onions. Nowadays, Cipollini's are available in most grocers produce isles. They are sold as a dry good in the same area as both boiling onions and pearl onions. Cipollini onions can be found in shades of red, yellow, and white. They are smallish disc-shaped onions which appear flattened in their middles. Because they are planted in early spring, the harvest for these tiny culinary gems is around mid-May. Cipollini's cure for a couple to several weeks before they are ready for shipping from farmers to grocers. When I see them begin to appear at my local grocer, I am sure to grab containers weekly through early fall so as to take advantage of the short window on these little guys. Once you've cooked with them, you'll begin looking for recipes with Cipollini onions and other ways to eat them at every meal.