A chef-instructor at the Institute of Culinary Education teaches us the difference between the two onions.

I am never without onions in my kitchen.

Frequently, what I have on hand are red onions, because they’re just so darn pretty.

Red onion and yellow onion over a blue and peach color block background

Simply Recipes / Photo Illustration by Wanda Abraham / Getty Images

Here’s everything you should probably know.

What Is the Difference Between Red and Yellow Onions?

The most obvious difference between red and yellow onions is their color.

photo of yellow and red onions with a blue and yellow polka border

Simply Recipes / Photo Illustration by Wanda Abraham / Getty Images

What Are the Best Uses for Red Onions vs. Yellow Onions?

“Red onions superpower is their eye appeal,” says Weinstein.

“Pity theGreek saladgarnished with yellow or white onions,” says Weinstein.

Easy Greek Salad in a Wooden Bowl, and in the Surroundings, Two Glasses of Iced Lemon Water, a Salad Serving Utensils, a Bowl of Herbs, and a White and Blue Striped Kitchen Towel

Simply Recipes / Mihaela Kozaric Sebrek

“The color is part of the dishs identity.

Weinstein also loves the “instant drama” thatpickled red onionsadd to a dish.

“Pickled red onions vitalize color-deficient foods.”

“They acquire silky, jammy textures on the grill or when roasted in the oven.

That smooth interior makes them more luxurious than their golden cousins for antipasti and barbecue plates.”

Simply Recipes / Mihaela Kozaric Sebrek

Does It Really Matter Which You Use?

If you’re using the onions raw, you might notice some flavor differences between red and yellow onions.

“For raw onion dishes, choose onions that fulfill a need,” he says.

“If it needs color, or would benefit from a neutral presentation, buy accordingly.”