15 Delicious Ways to Cook With Red Onions (2024)

Relatively mild and sweet, red onions are the perfect aromatic to add raw to salads and sandwiches. But it's equally (if not more so) delicious when you cook them up in dishes like baked fish or steamed rice. If you find yourself with a bulk bag of the root vegetables, these 15 recipes will help you transform them into mouthwatering meals.

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Red Onion Marmalade

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A little sweet, a little savory, and a lot oniony, this rich marmalade is excellent on sandwiches and grilled meats. "Always a crowd pleaser, and a great gift," says reviewer kzoo02. "Sometimes I'll throw in some fresh thyme during the cooking process, and that is also good."

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Tomato and Red Onion Sauce

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Fresh cherry tomatoes and a whole red onion make up the base for this sweet and savory pasta sauce. If you don't want tomato skins in your finished sauce, give it a quick run through a sieve before serving.

  • The 30 Best Pasta Recipes to Have in Your Arsenal

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Chickpea Salad with Red Onion and Tomato

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This vegan-friendly salad is versatile enough to prep for several meals throughout the week. Scoop up servings with chips, serve over a bed of lettuce, or lightly mash and spread onto bread for a sandwich.

  • 20 Dinners That Start With a Can of Chickpeas

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Pickled Red Onions

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These quick-pickled onions just take minutes to prepare and will keep well in the fridge for weeks. Place on sandwiches, tacos, or burgers; toss into salads; or serve on the side of cheese boards.

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Balsamic Chicken with Red Onions and Potatoes

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This impressive dish is an all-in-one meal. Potatoes and red onions are layered up before getting topped with herb-laden chicken and baked to golden brown perfection.

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Cucumber, Tomato, and Red Onion Salad

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This recipe is an excellent summer salad for when produce is at its peak ripeness. Red onions pairs with tomatoes and cucumbers, then is tossed in a citrusy dressing.

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Red Onion and Goat Cheese Tart

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Great for breakfast or dinner, this tart makes a delicious meal when served up with a side salad. Tangy red onions, salty goat cheese, and rich eggs make up the decadent filling.

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Onion Rice

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An extra versatile side dish, this simple rice goes with practically anything. Serve up this red onion-studded side with flavorful mains like curries or grilled meats.

  • Quick and Easy Side Dish Recipes

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Pan-Grilled Tilapia with Lemon and Red Onion

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Cooking for one? Treat yourself by making this beautiful dish. Flaky tilapia is coated in lemon juice and topped with buttery red onions for a world of flavors.

  • Dinner for One in 30 Minutes

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Pico de Gallo

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Take the extra step of making homemade pico de gallo and you'll never settle for the store-bought stuff again. "Try this. You'll think you're in Mexico. Or at least your favorite Mexican restaurant," says reviewer naples34102.

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Peruvian Pickled Onions (Salsa Criolla)

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Infused with lime juice and rice wine vinegar, these tangy pickles of red onions, cucumber, and tomatoes are delicious as a side or topper for dishes.

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Amy's Best Ever Onion Rings

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These lightly breaded onion rings let the flavor of the red onion shine through. Best part? They're ready in just 10 minutes, meaning you have more time to relax after dinner.

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Pan-Fried Asparagus with Onions

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This is the perfect recipe for when you need a simple side dish that pairs well with practically anything. "This quick and easy recipe earned me RAVE reviews," says Cheri.

  • 21 Top-Rated Side Dish Recipes Ready in 15 Minutes

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French Onion Soup Gratinee

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With two types of onion — red and sweet yellow — this classic soup is brimming with rich, oniony flavor. Serve it up with a thick layer of cheese and sprinkling of fresh herbs for that restaurant-quality experience.

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Orange and Onion Salad

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While the combination of red onions and oranges may sound odd, the two pair up beautifully in this salad recipe. Both tangy and brightly colored, the flavors meld well in the tart red wine vinegar dressing.

  • Browse more Onion Recipes.
15 Delicious Ways to Cook With Red Onions (2024)

FAQs

What is the best use of red onions? ›

Relatively mild and sweet, red onions are the perfect aromatic to add raw to salads and sandwiches. But it's equally (if not more so) delicious when you cook them up in dishes like baked fish or steamed rice.

How do you make red onions taste better? ›

Just peel and slice the red onion as called for in your recipe, then submerge them in a bowl of cold or ice water. Let them sit for at least ten minutes, stirring once or twice, before draining and using them in your recipe. For added flavor, you can also soak the onions in lime juice, lemon juice, or vinegar.

Why do you soak red onions in water? ›

Submerging them in cold water takes away that intense, sharp bite from the raw onion. The cold water helps the enzyme that causes onions to have their pungent flavor to leach out. Similarly, storing onions in the refrigerator will help mellow them out when you go to use them.

Why do you ice red onions? ›

You can get rid of the strong taste by soaking sliced onions in ice water for 20 to 30 minutes or by sprinkling them with an acid such as vinegar. Onions soaked in ice water will get very crisp while those sprinkled with vinegar will soften a bit, but they will lose the strong taste and become sweeter.

Can I freeze red onions? ›

Even though onions are freezer-friendly, stick to using them in cooked dishes rather than salads, because their texture will inevitably be different. Frozen onions will retain their flavor for 3-6 months — they're likely still good past that, but they won't be as potent.

What does rinsing red onions do? ›

Senior food editor Anna Stockwell says the quick rinse will make the sliced onions taste "sweeter and less sharp" than onions that haven't undergone the same treatment. Another bonus: the cold water will make the onions exceptionally crisp.

How can I make my onions more flavorful? ›

How you treat them changes their flavor:
  1. Macerate them in vinegar and they become acidic yet sweet.
  2. Lightly cook them in a pan without browning them for about 10 minutes and they're subtle and savory.
  3. Sweat them like this even longer and their flavor gets more complex and concentrated.
Jun 6, 2021

What does putting onions in vinegar do? ›

Then you just have to wait long enough for the vinegar to do its job, rinsing away the harsh sulfurous compounds, softening the onion, and giving it a pleasantly tart pop of flavor. If you use red wine vinegar, my personal favorite, the onions also turn an amazing hot-pink color.

Do red onions taste good cooked? ›

These onions are colorful and spicy-to-mild flavor. Because of their bright color and crispy texture, they're great for salads, salsas, and other fresh recipes. They're also excellent sliced for sandwiches. With cooking, the color fades, but they're still delicious cooked.

What does drinking red onion water do? ›

The theory behind drinking onion water is based on onion's natural anti-inflammatory and antimicrobial effects. Along with ginger, garlic, and turmeric, onions are known to fight off inflammation, oxidation, and harmful bacteria and viruses.

Can you eat red onions raw? ›

Eating onions raw is another way to enjoy their unique flavor and reap their health benefits. Raw onions, especially red ones, are a common ingredient in salads due to their crisp texture and pungent, spicy flavor that adds a zesty punch. Raw onions are also used in salsas, sandwiches or ceviche.

Why do you not cook with red onions? ›

For most of the year, you'll find red storage onions at the supermarket, which are pungent and spicy. In the summer months, you'll often find fresh red onions, which are much more mild, and lack a bit of the “onion-y ? flavor you'll find in their yellow and white cousins. They do much better raw than cooked.

Why do red onions turn blue in the fridge? ›

What happened? Red onions—as well as other red produce, including cabbage and cherries—are rich in pigments called anthocyanins. When they're cooked with acid, their color intensifies, but when combined with an alkaline component, they can turn a startling bluish-green color.

Why can I eat cooked onions but not raw? ›

Raw onions can be hard to digest, for some. Onions can cause a good deal more than just leaving you with that pungent onion-breath. Some people pass gas and feel digestive discomfort after eating onions in their raw form, while others burp and bloat.

Why do chefs use red onions? ›

Beyond their color differences, red and yellow onions have some different culinary attributes as well that make red onions superior for certain dishes. "Spicier than yellow onions when raw, red onions add a kick to salsas, sandwiches, and salads," Weinstein says.

Which onion is better red or yellow? ›

It depends on the purpose you intend to use the onion for. For salads, salsas, and anything raw preparations, we recommend red onions because of their color and mild flavor. But if it's for cooking and adding flavor to dishes, yellow onion is the perfect choice because of its sweet flavor.

Why are red onions better for you than white? ›

White and yellow onions are practically identical in terms of nutrition, but red onions contain anthocyanin that give them their rich color. Anthocyanins are a type of antioxidant that have been linked to reducing the risk of chronic diseases, like heart disease and cancer.

How to use red onion to lower blood pressure? ›

Eat raw onion small one or two pieces, or mix one tsp onion juice with one tsp of honey and take it twice a day morning and evening. 6. Daily add garlic and small onion in your diet.

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