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+ servings
Rough chopped onions are the perfect base for savory dishes.
5 from 1 vote

How to Cut an Onion

Learn How to Cut an Onion properly and speed up your cooking process.  These easy step-by-step directions and instructional photos will have you chopping, dicing, and slicing onions like a pro in no time at all. 

Course Appetizer, Dinner, lunch, Side Dish
Cuisine American
Prep Time 2 minutes
Total Time 2 minutes
Servings 1 serving
Calories 44 kcal
Author London


  • 1 onion sweet, red, or yellow


  1. Using a sharp knife trim the two ends of the onion.
    Remove the root and stem from the onion prior to cutting it further.
  2. With one of the cut ends facing up, cut onion in half.
    Cut an onion in half by placing it flat side down on a cutting board.
  3. Peel and remove the outer layer from both halves of the onion.
    Peel the skin and and outer layer of onion away before slicing or dicing an onion.

Slicing an Onion:

  1. Place one half of the onion cut-side down.

    Learn how to slice an onion for caramelized onions and more.
  2. Cut onion vertically into thin or thick slices. Repeat with the other half.

Dicing an Onion:

  1. Place one half of the onion cut-side down.

    Learn how to dice an onion quickly and easily.
  2. Cut vertical slices that are parallel to each other, trying to keep the onion together as you go.

  3. Turn the sliced onion 90 degrees and make additional cuts that are perpendicular to the original cuts.

  4. Make cuts closer together for a finely diced onion and cuts further apart for a coarsely chopped onion.

Recipe Video

Nutrition Facts
How to Cut an Onion
Amount Per Serving
Calories 44 Calories from Fat 9
% Daily Value*
Fat 1g2%
Saturated Fat 1g6%
Sodium 4mg0%
Potassium 161mg5%
Carbohydrates 10g3%
Fiber 2g8%
Sugar 5g6%
Protein 1g2%
Vitamin C 8mg10%
Calcium 25mg3%
Iron 1mg6%
* Percent Daily Values are based on a 2000 calorie diet.