Nahaufnahme von Händen, die eine rote Zwiebel auf einem hölzernen Schneidebrett präzise zerkleinern, ein Beispiel für die deutsche Fissler-Küchenkunst.

How to cut an onion

Chopping onions is a fundamental kitchen technique used in countless recipes worldwide. Although it may seem simple at first glance, properly chopping an onion holds secrets that can make the difference between a good and an outstanding meal.

Choosing the right knife

Choosing a sharp knife is crucial for efficiently cutting onions. A well-sharpened chef's or vegetable knife minimizes cell damage in the onion, which in turn reduces the release of tear-inducing enzymes. Furthermore, a sharp knife allows for precise cuts, which is especially important for dicing the onion into uniform cubes, rings, or strips.

Step-by-step instructions

These 4 steps will help you dice perfect onions:

A hand holds a halved red onion on a wooden board, next to it lies a precision-crafted Fissler kitchen knife - timeless German design.

1. Remove the peel

Carefully remove the skin, then cut the onion in half lengthwise from the root to the tip. Important: Do not remove the root of the onion! Place one half of the onion cut side down on the chopping board. A little Tipp for the best hand position so you do not cut yourself: Place your fingertips on the onion so that they rest lightly bent against it. This allows the knife to be guided very easily along your finger joints.

Close-up of a hand expertly slicing a red onion with a precision Fissler knife on a wooden cutting board.

2. Cut strips

Cut the onion half lengthwise into strips, stopping just short of the root, so that they are still held together by the root.

A person expertly cuts a red onion on a wooden cutting board with a Fissler knife, showcasing German precision and quality craftsmanship.

3. Cut into the root

Now make two or three horizontal cuts in the onion, almost to the root. The more often you cut the onion with the vegetable knife, the finer the dice will be later.

A person expertly slices a red onion on a wooden cutting board, showcasing the Fissler precision knife and timeless German craftsmanship.

4. Cut into cubes

Finally, cut the onion across the grain; it will automatically fall apart into many fine cubes.

Tipps for cutting onions without tears

Cutting onions can often lead to watery eyes. A few Tipps to minimise this include cutting the onions under an extractor hood or dipping the onion in cold water before cutting. Using a sharp knife can also reduce irritation, as fewer cell walls are damaged.

The importance of cutting size and shape

The way an onion is cut can significantly affect the flavor and texture of a dish. Finely diced onions are ideal for sauces or as a base for roasts, as they soften quickly and release their flavor evenly. Coarser cuts or rings, on the other hand, are perfect for grilled dishes or as a topping for burgers and salads, where a more distinct texture and shape are desired.

By mastering these techniques and Tipps, cutting onions can go from a tearful task to a quick, efficient, and even enjoyable part of meal prep. Each cutting technique opens up different ways to use onions in a wide variety of dishes and highlights the role of this versatile vegetable in the culinary world.

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