How to Slice an Onion




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“Onions are commonly chopped and used as an ingredient in various hearty warm dishes, and may also be used as a main ingredient in their own right, for example in French onion soup or onion chutney. They are versatile and can be baked, boiled, braised, grilled, fried, roasted, sautéed, or eaten raw in salads. Their layered nature makes them easy to hollow out once cooked, facilitating stuffing them, as in sogan-dolma. Onions are a staple in Indian cuisine, used as a thickening agent for curries and gravies. Onions pickled in vinegar are eaten as a snack.”

(Source: Wikipedia)

This video will teach you how to slice an onion like a chef.
Watch to see just how easy it can be when you know the correct knife skills.

The important thing to remember is that it takes time to build up speed. Go slow at first, speed will come over time. Precision and safety are key right now.

Don’t forget to check out my other knife skill videos and subscribe to my YouTube channel to make sure you don’t miss our future videos.



Raw onions
Nutritional value per 100 g (3.5 oz)
Energy 166 kJ (40 kcal)
9.34 g
Sugars 4.24 g
Dietary fiber 1.7 g
0.1 g
1.1 g
Thiamine (B1)

0.046 mg

Riboflavin (B2)

0.027 mg

Niacin (B3)

0.116 mg

Pantothenic acid (B5)

0.123 mg

Vitamin B6

0.12 mg

Folate (B9)

19 μg

Vitamin C

7.4 mg


23 mg


0.21 mg


10 mg


0.129 mg


29 mg


146 mg


0.17 mg

Other constituents
Water 89.11 g
Fluoride 1.1 µg

Percentages are roughly approximated using US recommendations for adults.
Source: USDA Nutrient Database

(Source: Wikipedia)



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