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–+ servings
Rough chopped onions are the perfect base for savory dishes.
4.41 from 5 votes

How to Cut an Onion

Once you learn How to Cut an Onion, you'll be ready to tackle your favorite recipes—without crying! Simply follow this step-by-step tutorial to learn the best way to peel the skin, then thinly slice, finely dice, or chop onions.

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


  • 1 onion sweet, red, or yellow


  1. Using a sharp knife, trim the two ends of the onion.

    The end of an onion is removed.
  2. Place the onion flat-side down onto the cutting board and cut it in half.

    The onion is cut in half.
  3. Peel and remove the outer layer from both halves of the onion.

    The skin is removed from the onion half.
  4. To cut into slices: Place one half of the onion cut-side down. Make cuts vertically into thin or thick slices. Repeat with the other half.

    The onion is cut into thick slices.
  5. To dice an onion: Place one half of the onion cut-side down. Cut vertical slices that are parallel to each other, trying to keep the onion together as you go. Turn the sliced onion 90 degrees and make additional cuts that are perpendicular to the original cuts. Make cuts closer together for a finely diced onion and cuts further apart for a coarsely chopped onion.

    Onion slices are diced into small pieces.

Recipe Video

Recipe Notes

  • To store: Keep cut onions in a sealed, airtight container in the fridge for up to to 10 days. Partially used onions can also be tightly wrapped in plastic wrap.
  • To freeze: Place cut onions in a freezer bag for 3-6 months and then add them directly to soups or other cooked dishes.
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.