1. Using a large sharp knife, trim off stem end of onion and cut it in half lengthways, through root end.

2. Peel off skin on both halves, leaving root end attached.

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3. If there are any long bits of root, remove them to prevent them getting in the onion.

4. Next, make horizontal cuts parallel to chopping board, slicing to, but not through, the root.

5. Then in the opposite direction, make lengthwise vertical cuts along the onion. Make sure not to cut through the root. Claw your hand to keep fingers safe from the knife. The more vertical cuts, the finer the chopped onion.

6. Cut across the width of the onion to chop into small pieces.

Use your skills to make these triple-tested recipes:
French onion soup recipe
Cranberry and red onion marmalade recipe
Try dicing onions to create our favourite one-pot meals recipes

Oak chopping board, Lakeland. Pro Chef's knife, Zwilling J.A. Henckels.

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A crack team of highly skilled food content producers, the GH Kitchen Team are Good Housekeeping’s resident recipe developers and all-round food obsessives. GH Kitchen Director Sarah Akhurst is our resident hosting pro and loves nothing more than putting on a foodie feast for friends. Senior Cookery Writer Alice Shields is a former pastry chef and baking fanatic who loves making bread and would have peanut butter with everything if she could. Lover of all things savoury, Senior Cookery Writer Grace Evans can be found eating nocellara olives at every opportunity, and will take the cheeseboard over dessert any time. With a wealth of professional kitchen experience between them, they’re dedicated to ensuring every Good Housekeeping recipe is the best it can be, so you can trust they’ll work every single time.