How to chop an onion

When Zyliss offered to send me one of their new Santoku knives last month, I was pretty excited. I’ve been wanting to work on my knife skills. I love to cook, but lack a lot of the techniques that would elevate me from home cook status. One of the biggest challenges I have? How to chop an onion.

I hate chopping onions. My eyes always water like, well, you know. It’s not fun. But because I like to make things like homemade salsas, quiches etc, I really need to get better with dicing.

First and foremost, you need to have a sharp knife that you are comfortable handling. What I like about the Zyliss Coated Santoku knife is it has an ergonomic handle with a rubberized handle which makes it easy to grip. The scalloped blade slices cleanly – I love it for tomatoes so I knew an onion would be no match. It’s also super affordable at $14.99, so it’s great for the home cook.

How to chop an onion

How to Chop an Onion - The Maven of Social Media

First you’ll want to cut the onion from root to tip.


Next, cut off the end.

onion 8

Now peel off the skin. This is the part where it all ends and my eyes start watering like mad.

how to chop an onion

Using your knife,  make several small, vertical slices all the way through the onion.

onoin 4

Stop to wipe your eyes with a paper towel (NOT YOUR HANDS) lol. Then turn the onion and make small slices again, which will create your nice diced pieces .

onion 5

Now in a perfect world, all of your dices would be all the same size and happy. I’m still working on that. But these are the basics on how to chop an onion.

onion 3

 Do you have any tips on how to chop an onion?

About Kerri Jablonski

Kerri Jablonski AKA The Maven lives in Seattle,WA with her 3 kids (2008, 2010, 2013), husband, cats and backyard chickens. Two of her children have special needs. Kerri enjoys cooking, travel, movies and spending time with her family.


  1. Carrie Phelps says:

    Cutting the onion from root to tip is correct but then you DON’T remove the root as it’s what holds the layers together. Cutting the root off allows the layers to shift and you’re more likely to cut yourself. Dice/slice the onion with the root attached and once you’re done discard the root.

  2. Is that knife really purple? I need to research it.

  3. I agree with not cutting the root off- I keep that on too. My only other tip is to rinse your knife and your hands in cold water for some reason that helps.

  4. Carolann Leibenguth says:

    I also keep the root tip on I heard there was a tip for no crying but for the life of me I can’t remember. I love the color of the knife.

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