Southern Tennessee Onions Casserole Recipe - Easy (2024)

FAQs

What type of onions are Vidalia onions? ›

What Is a Vidalia Onion? A Vidalia onion is a hybrid Granex yellow onion lauded for its sweet, mild flavor. Page adds, "Vidalia onions can only be grown in the state of Georgia outlined in a 20-county area." She also notes that Vidalia onions are the official state vegetable of Georgia.

Larger and slightly flatter than yellow onions, with lighter colored, less opaque skin, sweet onions contain extra sugar, making them good for caramelizing. Their larger size and sweeter flavor make them ideal for making onion rings.

Sweet onions are larger than yellow onions, with a light skin. As the name suggests, sweet onions have sweet flavor due to a high sugar content, making them great for sauteing and caramelizing. Sweet onion varieties include Walla Walla, Texas Sweets, Maui, and Vidalia.

Because of its uniquely small size and a taste sweeter than that of a common onion, it has also been used in dishes ranging from mid-20th-century American casserole dishes such as succotash to sweetly flavored onion relishes in Indian cuisine. It can also be used in stews soups or sautéed (fried) with other vegetables.

Some of the world's sweetest onions (like Pittman & Davis's Sweet Georgia Onions) are grown in Georgia. Their sweetness is due to the low amount of sulfur in the soil in which they're grown.

Vidalia Onion Substitute

If you can't get your hands on Vidalia onions, you can use any type of sweet onion instead. For instance, Walla Walla and Maui are both perfectly acceptable alternatives.

Red onions

All types of onions are good for you, but this dark reddish-purple variety, sometimes called purple onion, has especially high levels of quercetin and other helpful plant compounds known as flavonoids. Flavonoids give many fruits, vegetables, and flowers their colors.

Basically, if you're going to eat an onion raw, the white onion is what you want to reach for. And while they're pretty mild on their own, you can further tame their flame by slicing one thinly and giving it an hour-long soak in cold water—they'll be so sweet, you can practically eat them like a salad.

White onions are probably the strongest-tasting onion on this list. They're typically used in Asian and Mexican dishes, as well as potato and macaroni salads. You can also sauté them, making them ideal for French onion soup or any other food in which you want to add sweet or sour flavor.

Which onion is tastiest? ›

Red onions are sweeter and great for eating raw or in salads. Yellow onions are not as sweet and are more often used in cooking. There are also white skinned onions that are great eaten raw and in salads.

And the Walla Walla soil and growing conditions give that onion a more complex flavor profile "that tells you that this is an onion," he says. The Vidalia may be milder or sweeter, but to Dean, flavor makes the winner. Ultimately, it may be availability that dictates which onion you buy.

Pearl onions always have to be peeled before use, which can be tricky. The easiest way is to give the onions a one- to two-minute dunk in boiling water, drain them, and drop them into a bowl of ice water. Cut off the root end, then pinch the onion and the skins should slip right off.

Like other onions, pearl onions need to be peeled before use. Unlike their larger onion counterparts, pearl onions are trickier to peel thanks to their tiny size. The fastest way to peel pearl onions is to use a blanching method.

The sweet onions remained a mostly local secret until the 1940s. In that decade, according to the University of Georgia, Earle Jordan planted the yellow granex onion, a hybrid of the Bermuda and Grano onions developed by Henry Jones of Texas A&M. It was this onion that eventually became the famous Vidalia onion.

1. Vidalia onions can only be grown in Georgia. According to the Vidalia Onion Act of 1986, there are only 20 counties in the United States that are allowed to grow Vidalia onions and sell them under the trademarked name. All of them are in Georgia, centered around the small town of Vidalia, GA.

Sweet onions, like Maui and Vidalia, are technically white onions - but they have a much higher sugar content, and a lower sulphur content, so they don't have that sharp bite to them. They often have a limited season, from spring to summer, so it's always great to pick up a few when they're available.

However the flavor profiles of these two are reversed. Whereas Vidalias start on a strong and end on a sweet note in your mouth, Walla Wallas are the opposite. And their harvest periods overlap. So it isn't unusual for consumers to start buying Vidalias in early summer and switch to Walla Wallas by late summer.