How to Dice an Onion Like a Chef – A 30 Second Visual Guide

How to dice an onion like a chef

How To Dice An Onion Like A Chef – Your 30 Second Guide

1. Slice off top

2. Cut in half lengthwise, peel.

3. Slice onion lengthwise – leave the root intact to hold the slices together

4. Make 1-2 horizontal cuts

5. Cut across onion, top to bottom – when you get near the root end, push the onion half on its face and finish cutting

Did you know, the onion plant has been selectively cultivated for 7,000 years?

But which onion do you use?

Yellow – Good for use in everyday cooking dishses

White – Sharp and crunchy, these are ideal for salsas, and often used in Mexican dishes

Red – Milder but present flavor, adds color to a dish,and used raw for dishes like salads and burgers

Sweet – Milder flavor, sweet and crisp. Good for salads and sandwiches

Shallots – Common in French cooking, shallots are sweet with less acidity and retain flavor in reductions

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Andrew is the founder and editor of Primer. He's a graduate of American University and currently lives in Los Angeles. Read more about Primer on our About page. On Instagram: @andrewsnavely and @primermagazine.


  • […] perfectly diced onions fast with this simple technique. Check out How to Dice an Onion Like a Chef – A 30 Second Visual Guide on […]

  • Reply April 22, 2015


    This is an awesome reference! I love the quick onion guide, too. I’ve been needing to update my kitchen knives, what kind are you using?

  • Reply April 22, 2015


    What watch are you wearing on the front page of the website that links readers to this post?

    • Reply April 22, 2015


      Glad you like it! It was my grandfathers Timex from the 60s/70s.

      • Reply April 23, 2015

        Jason Mailloux

        I didn’t get to see it – can you share a pic Andrew?

  • Reply April 23, 2015


    Make sure you’re doing that “claw” when you cut so you don’t slice off the tips of your fingers.

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