Dice an onion

How to Dice an Onion Without Crying?

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Updated on February 4, 2024

Reviewed by AFAD Team

Few ingredients possess the transformative power and global ubiquity quite like the onion. Its unique flavour and countless uses make it a kitchen essential in homes worldwide.

Join us as we peel back the layers, both literally and figuratively, to explore the myriad ways this bulb can be consumed. Let’s find out onion varieties, how to dice an onion, and how onions bring both taste and health benefits to your table.

What Class of Food Are Onions?

Onions belong to the “Vegetables” class of food. They are a type of plant cultivated for their edible bulbs, which are used in cooking for their flavour and aroma. 

Onions are a staple ingredient in various cuisines worldwide and are commonly used to add depth and taste to many dishes. They are widely recognised for their intense and distinct flavour. 

Onions can be consumed raw, cooked, grilled, roasted, or fried. Their versatility in the kitchen makes them a beloved ingredient in countless culinary creations.

Benefits of Onions

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Onions are a versatile and beneficial ingredient that offers a multitude of health benefits. Let’s explore some of the incredible benefits that onions can bring to the table.

Supporting Immune System

Onions are allies in fortifying your immune system as they are a rich source of antioxidants and vitamin C. These compounds help protect your body from harmful free radicals and keep illnesses at bay.

Promoting Heart Health

Onions contribute to heart health by aiding in the reduction of bad cholesterol levels. The natural sulfur compounds in onions have been linked to promoting cardiovascular well-being and supporting proper circulation.

Regulating Blood Sugar

Some compounds found in onions are believed to help reduce blood sugar levels. For those managing diabetes or striving to maintain stable blood sugar levels, incorporating onions into meals can be a beneficial and delicious choice.

Boosting Digestive Health

Having enough fibre in your diet is essential for a healthy digestive system, and onions are packed with fibre. Incorporating onions into your diet can help regulate your digestion and keep your gut in good shape. 

Weight Management

Onions are low in calories and high in water and fibre, making them a satisfying addition to meals. Their natural crunch and flavour can help add bulk to dishes, aiding in portion control and weight management.

Onion Varieties

Onions come in a delightful array of varieties, each with its unique flavour, appearance, and best uses in cooking. Each onion variety brings its unique character to the table, allowing you to experiment and play with different flavours in your kitchen. Here are some common onion varieties you might come across.

Yellow Onions

Dice an onion

Yellow onions are medium to large-sized with golden-brown papery skin and ivory-white flesh inside. They have a rounded shape and multiple layers. Yellow onions are the most widely used and versatile onions. They have a strong flavour when raw, which mellows and becomes slightly sweet when cooked. They work well in almost any savoury dish, including soups, stews, and sautés.

Red Onions

Dice an onion

Red onions are known for their vibrant purplish-red colour with white and pinkish flesh. They are medium-sized and often have a flatter shape compared to yellow onions. Red onions are milder and slightly sweeter than yellow onions, making them perfect for eating raw in salads and sandwiches. They can also be cooked or pickled. Their stunning colour adds visual allure to any dish. 

White Onions

Dice an onion

White onions have a paper-thin, pale white skin and crispy white flesh inside. They are usually medium-sized and have a round shape. White onions have a milder and sweeter taste compared to yellow onions. They are ideal for dishes where you want a subtle onion taste without overpowering other ingredients. They are often used for Mexican dishes, seafood, and creamy sauces.

Sweet Onions

This category includes popular varieties like Vidalia, Walla Walla, and Maui. Sweet onions are larger than regular onions and have a pale golden-yellow skin. Their flesh is tender and juicy, with a high water content. They have a very mild and sweet taste, making them perfect for eating raw or lightly cooked.


Dice an onion

Shallots are small, elongated bulbs with coppery-brown skin. Inside, they have multiple cloves, similar to garlic. Shallots have a more delicate and subtle flavour than regular onions. They are both sweet and slightly sharp. They are often used in gourmet cooking, dressings, and vinaigrettes.


Dice an onion

Scallions have long, slender green stalks and small white bulbs. They are harvested young before they develop into full-sized onions. They have a mild taste with a slightly zesty flavour. Scallions are often used in salads, stir-fries, and soups. They can also make for a charming garnish to your dishes. Other names for scallions include green onions and spring onions. 


Dice an onion

Leeks resemble large green onions, with white, cylindrical stalks and dark green leaves. They have a milder flavour compared to regular onions with a slight sweetness. They are commonly used in soups and stews for a sophisticated taste. 

Most Popular Ways of Consuming Onions

Onions are a versatile ingredient enjoyed in numerous ways. How onions are prepared and cooked can greatly influence their taste and texture, allowing them to adapt to various recipes and palates. Here are some of the most popular ways people consume onions. 


Dice an onion

The pungent, crunchy goodness of raw onions lends a refreshing taste. Sliced or chopped raw onions are commonly used in salads, sandwiches, and wraps. Their crisp texture and bold flavour complement and add a refreshing twist to various dishes.


Caramelising onions is a popular way to elevate the sweetness and depth of your dishes. You can create caramelised onions by slowly cooking them over low heat until they turn golden brown. The result is a sweet, rich flavour addition perfect for burgers, sandwiches, and pizzas.


Dice an onion

Onions are often sautéed with other vegetables as a base for many recipes. Their aromatic essence adds depth to sauces, stir-fries, and pasta dishes, making every bite irresistible.

Grilled or Roasted

Dice an onion

Grilling or roasting onions brings out their natural sweetness and enhances their flavour. Incorporate grilled onions to enhance the aroma and taste of your grilled dishes. You can use them as a mouthwatering side dish, a flavourful topping for meat, or a versatile ingredient in kebabs and fajitas.


Dice an onion

Pickled onions are a popular condiment that brings a tangy twist to your dishes. Add them to tacos, salads, and sandwiches for a pop of zesty flavour that contrasts beautifully with other ingredients.


Dice an onion

Transform onions into irresistible delights by making deep-fried onion rings or fritters. These crispy treats are perfect for appetisers, snacks, or as a delightful accompaniment to main courses. They are unique and loved for their crispy texture.


Onions are commonly used as a flavour base in various dishes. When blended in soups and stews, onions release their rich flavours, infusing the entire dish with aromatic essence. 

Dips and Sauces

Onions play a pivotal role in creating robust sauces and gravies. They have the ability to meld with other flavours and enhance the overall taste. They are also used to make creamy dips and zesty salsas that pair well with various dishes. You can make a classic onion dip or a fresh tomato-onion salsa that is perfect for enhancing your snack or party spread.


Onions can be stuffed with various fillings, such as meat, cheese, or vegetables, and baked until tender and flavourful. They can also be incorporated into stuffings for poultry, vegetables, or grains. Their savouriness will add depth to your delectable stuffing dishes.

Onion Powder and Flakes

Dice an onion

Onion powder and dried onion flakes are convenient ways to add onion flavour to dishes without the need for chopping fresh onions.

How to Dice an Onion?

Get ready to dice onions like a pro without any fear of losing fingertips! In this video by Ian Hunter from Belfast Cookery School, you’ll learn the ultimate technique to master onion dicing. 

Ian starts by stressing the importance of keeping the root intact as it holds the onion together while slicing and chopping. He demonstrates the step-by-step process precisely and easily, making three incisions on the onion and then expertly dicing it. 

But that’s not all! Ian also shares a valuable tip on how to hold the knife to avoid accidents and keep your fingers safe. So, let’s watch the video and learn the secrets to achieving perfectly diced onions. 


Cooking Hacks with Onions

Onions are more than just flavourful bulbs. With some tips and tricks, they can take any dish to the next level. You can elevate your cooking skills by utilising the versatility and potential of onions.

Here are some cooking hacks with onions.

Mastering Caramelisation

Ever wondered how to achieve that perfect caramelised onion goodness without spending ages at the stove? Here’s a hack that’ll save you time and effort! Adding a small amount of baking soda to your onions speeds up the caramelisation process, giving you beautifully golden and sweet onions in no time.

No More Tears

Tired of shedding tears while chopping onions? Place your onions in the freezer for about 10 minutes before cutting them. The cold temperature slows down the onion’s reaction with the air, reducing the release of irritating compounds that make you cry. No more tears!

Delightful Sweetness

When seeking to add some natural sweetness to your dishes, turn to the charming sweetness of sweet onions! These delightful varieties like Vidalia, Walla Walla, or Maui are perfect for adding that touch of magic to your recipes. Their mild flavour and sugary taste make them ideal for salads, sandwiches, or even grilling.

Perfect Pickling

If you want perfect tangy pickles, pearl onions are your secret weapon! These petite delights are perfect for pickling, adding a burst of flavour and texture to your homemade pickles.

Onion-Infused Oil

Using onion-infused oil is a great option to add a hint of onion flavour to your dishes without the actual onion pieces. It is easy to make onion-infused oil! Simply heat up onion slices with oil for a while and let them cook gently on low heat until the oil is fragrant and infused with the onion’s essence. Use this aromatic oil as a base for dressings, marinades, or sautés.

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No More Onion Smell

Say goodbye to onion odours by rubbing your hands with a stainless-steel object under cold running water. You can use your kitchen sink or a stainless-steel spoon. The metal will neutralise the onion smell, leaving your hands fresh and odour-free.

Onion Preservation

Dice or slice the leftover onions, place them in an airtight container and freeze them for future use. This efficient practice helps reduce waste and save you time and effort in the kitchen. The onions will stay fresh, pre-chopped, and ready for your next recipe. 

So, as you’re dicing, sautéing, caramelising, or pickling, let the onion be your culinary muse. From the first chop to the final bite, the onion’s versatility knows no bounds. If you’re craving more culinary inspiration, don’t miss our treasure trove of resources right here on our website, such as our collection of traditional British dishes.

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