How to chop an onion

How To Dice an Onion

Contributor: Lyndsay Burginger

Learn how to chop an onion easily and quickly for recipes calling for diced onions. Check out the step-by-step photos above for more clarification. 

  • Author: Lyndsay Burginger
  • Prep Time: 5 minutes
  • Total Time: 5 minutes
  • Yield: 1 onion, diced 1x


  • 1 onion


  1. Slice the stem and root off the onion.
  2. Make a cut vertically through the middle of the root to the bulb.
  3. Peel the skin off the onion using your fingers. If you need to, peel off the outer layer of onion if it is soggy or ugly.
  4. Once the onion is cleaned, take one half and place it on the cutting board. Make 1/4-inch vertical cuts making sure to leave the root intact.
  5. Dice your onion using horizontal 1/4-inch cuts. These will go through the entire onion. Use in recipes that call for chopped or diced onion as directed.