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All About Maui Onions

Maui onions, grown in the shadows of Haleakala—a long-dormant volcano on the island of Maui—are touted as among the sweetest onions in the world.

They are famously known for their mild flavor, juicy texture, and unique taste, resulting from the distinctive red volcanic soil found on Mount Haleakala.

Their popularity is evident as professional chefs and home cooks alike use them for a variety of culinary purposes, such as roasting, grilling, and frying.

These onions have a yellowy-white hue and resemble a squashed globe in appearance. One of the key factors that set Maui onions apart from other yellow onions is their higher water and sugar content. In addition, they lack the sulfur that typically causes the pungent odor and sharp taste found in other onions.

onions similar to maui onions

Characteristics and Flavor Profile


Maui onions have a succulent and juicy texture due to their high water content. Their pale yellow flesh is covered with a golden-brown, papery skin, which gives them a unique appearance.


The taste of Maui onions is quite different from that of other onions. They are distinctively sweet, lacking the sulfur that gives most other onions their sharp taste and tear-producing odor. This makes them a great choice for various dishes where a milder onion flavor is desired.


The sweetness of Maui onions can be attributed to the unique growing conditions on the slopes of Mount Haleakala, a dormant volcano in Maui, Hawaii. The volcanic soil here is rich in minerals and nutrients, and the warm, sunny climate contributes to their sweet flavor profile.

This has made Maui onions a popular choice for both raw and cooked dishes, including the famous raw Maui onion eating competition.

Culinary Uses

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Maui Onions are a special variety of sweet onions that are grown on the Hawaiian Island of Maui. They are famous for their unique sweet and mild taste, making them a popular choice among chefs and home cooks alike.


Maui Onions are perfect for eating raw due to their distinct sweetness and lack of tear-producing odor. You can slice them thinly and serve them on top of salads or pizzas. Fresh Maui Onion slices also make a great topping for poke bowls and burgers, which enhance their flavor.


Grilling Maui Onions is another excellent way to enjoy their exceptional taste. Their high sugar content allows them to caramelize beautifully when cooked over a flame.

Try grilling thick slices or large onion rings in the outdoors during a spring barbecue or at a gathering in Whalers Village. Once grilled, they can be added to sandwiches, served as a side dish, or included in various recipes.


When it comes to cooking, Maui Onions are incredibly versatile. You can incorporate them into:

  • Soups: Sweet onions like the Maui variety are known to elevate the flavors of different soups.
  • Stir-fries: They can be added to stir-fries as a delicious and aromatic ingredient.
  • Roasting: Maui Onions can also be roasted with other vegetables to create a flavorful side dish.

When cooking with Maui Onions, keep in mind that they grow in the fertile soil of a dormant volcano, which contributes to their unique taste. The onions contain a high sugar content, so they easily caramelize and become even sweeter when cooked.

By experimenting with the many different culinary uses of Maui Onions, you can bring a taste of the islands to your kitchen, enhancing your dishes with their sweet and mild flavor. Remember to always use them with confidence and creativity.

Growing and Harvesting

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These onions are well suited for the warm days experienced in Hawaii, and they have a high sensitivity to impurities in the soil. Hawaiian farmers must pay close attention to soil conditions to grow the best possible onions.

Ideally, the soil should be loamy, sandy, or clay with a pH between 5.5 to 6.5. It should also be well-drained, and fertile. Providing the onions with full sun exposure throughout the growing season is crucial for optimum growth and bulb formation.

Planting for Maui onions can be started indoors 4 to 6 weeks prior to the last frost date. Before transplanting the onions outdoors, it is essential to harden off the onion plants for 7 to 10 days.

Transplanting can be done approximately 6 weeks after planting indoors, with a spacing of 4 to 5 inches between plants and 12 to 18 inches between rows. This spacing allows adequate room for the onions to grow and prevents overcrowding, which can lead to disease and suboptimal growth.

As the onions grow, it is crucial to monitor the surrounding temperature as these onions thrive best in conditions that are both warm and cool. Ensuring that the onions receive enough sunlight and have well-draining soil can help avoid complications related to excess moisture.

When the time comes to harvest the onions, look for the leaves to become yellow and begin to wilt. This is a clear indication that your Maui onions are ready to be picked. Carefully use a garden fork to loosen the soil around the plants, or if the soil is already loose, simply pull them up by hand.

Storing and Preserving

Maui onions are a sweet and flavorful variety that can add a unique touch to many dishes. In order to maintain their freshness and flavor, proper storage and preservation methods are crucial.

When you first bring home your Maui onions, store them in a cool, dry place away from direct sunlight. A pantry or cupboard is a good option. By doing so, you can extend their shelf life and maintain their moisture content for as long as possible.

If stored correctly, Maui onions can last up to 2 months.

In some cases, you may need to refrigerate your onions. If they have already been cut, wrap the pieces tightly in plastic wrap or store them in an airtight container.

When refrigerated, cut onions can last around 4 days. However, remember that the moisture content is higher in refrigerators, so it’s best to only refrigerate when necessary.

Maui Onion Festival

The Maui Onion Festival is a signature event held annually at Whalers’ Village in Kaanapali, Maui. Celebrating the cultivation and promotion of the world-famous Maui Onion, this festival has been attracting visitors and residents for more than two decades.

One of the key features of the Maui Onion Festival is the participation of local celebrity chefs, who come together to showcase creative uses of Maui Onions through demonstrations, tastings, and competitions.

With a variety of delicious onion-based dishes on display, the festival offers a unique culinary experience for both locals and visitors alike.

Recipe Ideas

Maui onions are a sweet and flavorful addition to various dishes. Their versatility allows them to be grilled, fried, baked, or broiled, enhancing the taste of your meals. Here are a couple of popular recipe options that incorporate Maui onions:


Kebabs are a fantastic way to incorporate Maui onions into your meal. By skewering chunks of these sweet onions alongside marinated chicken or lamb, you can create a flavorful and delicious dish. You can also add vegetables such as carrots, cucumbers, and pineapple for added texture and taste.

Once the ingredients are threaded onto skewers, you can either grill or broil them to perfection. Serve them with a tangy sauce or dip that complements the sweet, caramelized flavor of the onions.


Poke (pronounced POH-kay) is a traditional Hawaiian dish consisting of raw fish marinated in a flavorful sauce. To add an extra burst of flavor to this dish, you can include thinly sliced Maui onions. Their sweetness and crunchiness will nicely complement the tender fish and bold marinade.

To make a poke bowl, combine chunks of fresh fish, such as tuna or salmon, marinated in a mixture of soy sauce, sesame oil, and sugar. To this, add sliced Maui onions, diced cucumber, and chopped hazelnuts or seeds to taste.

Optionally, you can include some pineapple chunks for a fruity twist. Serve your poke over a bed of rice or mixed greens for an enjoyable and healthy meal.

Where to Buy Maui Onions

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If you want to grow your own Maui onions from seeds, buy some Maui onion seeds online.

Mature Maui onions are harder to find. If you’d like to go straight to the onions themselves so you can include them in a recipe, you can buy Walla Walla onions, which are very similar to Mauis, online as well.

Frequently Asked Questions

What are the unique characteristics of Maui onions?

Maui onions are known for their sweet and mild flavor, which makes them a favorite among chefs and food lovers alike. They lack the sulfur that gives most other onions their sharp taste and tear-producing odor.

The high sugar and moisture content in their flesh allows the onion to be exceptionally sweet, succulent, crunchy, and mild.

How are Maui onions different from other onion varieties?

The primary difference between Maui onions and other onion varieties is their lower sulfur content. This results in a milder flavor, less tearing when cutting, and a sweeter taste.

What are the best uses and recipes for Maui onions?

Due to their sweet and mild flavor, Maui onions are perfect for salads, sandwiches, and grilling. They can be used in any recipe that calls for onions, but their distinct taste truly shines in dishes that highlight their uniqueness.

What is the nutritional value of Maui onions?

Like all onions, Maui onions are low in calories and contain various vitamins and minerals such as vitamin C, potassium, and fiber. However, their specific nutritional content may vary slightly from other onion varieties due to their unique growing conditions and genetic makeup.

Are there any health benefits associated with Maui onions?

As a member of the allium family, Maui onions share many of the same health benefits as other onion varieties. These benefits include improving heart health, reducing inflammation, and supporting the immune system. Their mild flavor also makes them a great alternative for individuals who may find other onions too strong or pungent.

Wrapping up

The exceptional sweetness and mildness of Maui onions, combined with their succulent and crisp texture when ripe, make them a sought-after ingredient in various dishes. These versatile onions offer a unique, delicious twist to conventional recipes, providing a touch of delightful island flavor to meals.

To learn more about planting, harvesting, and enjoying Maui Onions, check out our onion hub page.