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How to chop onions in a food processor

Onions are an essential ingredient in so many recipes, bringing a rich depth of flavour and adding texture. They can be roasted, fried, caramelised or served raw, forming the basis of many soups, stocks, sauces, curries and stews.

Using your food processor to chop, slice or mince this versatile vegetable is a real time-saver, allowing you to prep even large quantities in seconds, and ready to get on with the next stage of your recipe. In this short guide we’ll show you how to use your food processor to prep onions like a pro.

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Using a food processor to prepare onions

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Whether you need to chop onions ready to cook for tonight’s dinner or prep some in advance for a mass batch-cooking session, using your MultiPro food processor will help you do it quickly and easily, and produce consistent, evenly-sized results.

Models with the Express Serve™attachment, like the ultra-compact MultiPro Go, allow you to slice an unlimited quantity directly onto a plate or into a pan, while keeping the main bowl clean.

Another added bonus of using a food processor rather than a knife to cut up your onions? You'll save yourself a lot of tears, too.

Chopping onions with the knife blade

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Chopping and mincing your onions: 
  • Start by removing the onion’s papery skin and slicing off both the top and root with a sharp knife. Cut into quarters. 
  • Fit your food processor’s knife blade. Place the onion in the food processor bowl and secure the lid. 
  • Process until you achieve the desired size. Use the pulse function in short bursts for chopped onions. For a finer, more minced consistency, process in longer bursts.

Slicing onions

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You can also use your food processor to slice onions:
  • Prepare your onion by peeling it and slicing off the ends, before cutting into quarters. 
  • Place the slicing blade in the food processor bowl and secure the lid. Assembly may vary depending on your model, so always check your product manual. 
  • Turn your food processor on and insert the onion quarters through the feed tube, one by one. Using smaller segments will work better.

Conserver les oignons coupés

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Les oignons contiennent beaucoup d'eau, il se peut donc qu'il y ait un excédent de liquide dans le bol du robot en fin de préparation. Nous vous conseillons d'égoutter l'eau avant de retirer les oignons du bol.

Les oignons hachés ou émincés se conservent dans un récipient hermétique au réfrigérateur pendant 1 à 2 jours, ce qui en fait un ingrédient idéal à préparer à l'avance. Les oignons crus hachés peuvent également être conservés au congélateur dans des sacs de congélation hermétiques. Ils peuvent ensuite être ajoutés aux recettes et cuits directement à partir du congélateur.

Why not try…

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The humble onion is the cornerstone of so many mouth-watering dishes.

You can try a classic french onion soup using your food processor attachment, with sliced onions that are slowly caramelised for a really deep, comforting flavour. Or this deliciously aromatic chicken rogan josh curry, with sliced onions and garlic forming the base of the spicy tomato sauce.
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