Thanks to the millions of free recipes available on the internet, there's never been a better time to learn to cook. The only problem is, a lot of them aren't written by professional recipe developers, so the details can leave a lot to the imagination — especially when it comes to onions. If you're up against a list of ingredients, and you're not sure which to buy, the best choice is the simplest: Go for regular yellow onions, like the kind that come in a plastic mesh bag by the pound.

There's a reason yellow onions are found in every grocery store in the U.S. — they are super versatile, deliver strong onion-y flavor, and are inexpensive.

Don't get distracted by a display of sweet, red, or white onions competing for your attention if you're out shopping, because good old yellow onions have all the aromatic power you need for any recipe that calls for just "onions." Yellow onions are all-purpose powerhouses We are lucky to live in a time when there are lots of choices in the produce section. The U.

S. alone grows more than 100 different varieties of apples, for example. But when it comes to onions, there's no need to mess with the success of yellow onions.

In fact, yellow onions — which are sometimes called brown onions – make up nearly 90% of all the onions grown and sold in America, which is why most of us don't think of them as yellow onions, we just call them "onions" — kind of like "bananas." Because of this, almost every recipe you come across that calls for oni.